By swearing to God, you make a sacred oath that most people respect more and therefore, are more. ISTG Meaning= Threat3. It can be used to convey sincerity, make promises, express annoyance, and more. ” It is commonly used in text messaging and online chat to emphasize the truth or sincerity of a statement. They are there for each other on the good days and the bad days. What does 'ISTG' mean? "ISTG" stands for "I swear to God," an acronym usually used to express the seriousness of a situation or assure you're not joking when sharing a surprising fact. ”. While the presence of the word “God” might indicate some religious connotation, it’s not a religious term at all. ISTG Unveiled: Introduction to the Slang. Alternatively, you might say ISTG to show exasperation or frustration at something someone is telling you. ISTG has multiple definitions that can be used in various settings. This expression is most likely something you've heard in ordinary conversation. new search. This. It’s used to convey a deep sense of seriousness about a situation or to emphasize a point being made. Summary: · The added I at the beginning just refers to the person that is saying this, so ISTG means “I Swear To God”. ISTG Meaning= Threat Use Cases & Examples. It is used to emphasize a statement, a promise, or a claim, to express frustration, or to make a solemn vow. Gunna explained that the ‘P’ stands for ‘player,’ although it can also stand for. ”. What does 'ISTG' mean? "ISTG" stands for "I swear to God," an acronym usually used to express the seriousness of a situation or assure you're not joking when sharing a surprising fact. LFG meaning: let's freaking go. This initialism should be avoided in professional situations or in conversing with someone who is religious. -ISTG that was the best pizza ever! -I put your racket back in your duffle bag istg. ISTG is used to express frustration or annoyance at something or to show emphasis on a statement. FOMO meaning: the fear of missing out. ISTG and OMG can also be used interchangeably often. ”. U Jelly has become a very popular expression, and because of its viral spreading nature, it has achieved meme status. This abbreviation is typically used to express surprise, confusion, disbelief, or. TLDR meaning: too long; didn't read. Its meaning is “I Swear To God,” and it is commonly used to add sincerity or emphasis to a statement. The abbreviation “ISTG” is a shorthand. While the presence of the word “God” might indicate some religious connotation, it’s not a religious term at all. "ISTG" stands for "I swear to God," an acronym usually used to express the seriousness of a situation or assure you're. -ISTG that was the best pizza ever! -I put your racket back in your duffle bag istg. ISTG is short for "I swear to God. I swear to God. It may sound like a new term to some, but this one is very familiar to social media users. ISTFG. The abbreviation ISTG is widely used in text messaging and online chat with the meaning "I Swear To God. It is often used in informal conversations, especially when expressing frustration or disbelief. Matching search results: Since the STG meaning is often expressed fully when in a verbal conversation, the term STG should only be used in casual conversations via text or on. Meaning. This is a group of teachers that are more than friends. What does Istg mean in text message . Abbreviation of I Swear To Mother Fucking God. Chronic Osteomyelitis Pathology Degree Embed Share an image of ISTFG » Click to view: Hearing impaired tip:. 1 definitions of ISTG. This can be seen in phrases like: “ISTG, I’m always here for you” or “ISTG, I’ll never forget what you did for me”. Further Reading: What Does NFS Mean: Here Is All-inclusive Information You Need to Know. ” It is often used to emphasise the truthfulness of a statement or convey the seriousness of a situation. Use ISTG to show you’re not joking about something, or to express annoyance or frustration with something (or someone). " ISTG is used to add emphasis to a statement (usually a promise, threat,. Having a parental control app on your child’s phone will give you. ISTG is an acronym used in texting, which stands for “I swear to God. ISTJ types like to have clear goals and realistic deadlines, and to work with factual data to solve problems and monitor progress. The term is primarily used to emphasize a point you’re making and can reiterate anger or annoyance. Also, Check What Does SNM Mean In Texting? What Does ISTG Mean and How Is It Used in Real Context? The use of shortened phrases is a popular way to communicate in text messages and online conversations. ”. I Swear to God. " The abbreviation ILYSM is used with the meaning "I Love You So Much" as an expression of affection. The Meaning of ISTG in Text. What does istg mean in text. Start the day smarter. More violent then just I Swear To GodISTG is an acronym that is short for “I swear to God”. ” Origin of ISTG. Get all the news you need in your inbox each morning. It can be a powerful tool for self-motivation and encouragement. It can also be an expression of surprise or. "ISTG" stands for "I swear to God," an acronym usually used to express the seriousness of a situation or assure you're. Definition of ISTG in Slang/Internet Slang. STG: You can swear to god when you are frustrated or in exacerbation. ”. It's not typically used in a religious context. Correct: ISTG Correct: istg Incorrect: iSTG Usage Use of the abbreviation can be found in the following places. It is a commonly used slang expression used to emphasize that someone is telling the truth, or to add emphasis to a statement. The “baby” part of the phrase isn’t a literal reference to a child, and. This phrase has a couple of variants, S2G and ISTG, and is frequently used in texting or on social media. ”. It can be used to convey extreme seriousness, exasperation, or surprise, and is usually used outside of a serious religious context. The slang abbreviation ISTG is frequently used as an interjection to express emotion or as an attestation of honesty. It stands for “I swear to God. ”. ”. " People use it in various places on the internet to tell someone to stop talking or as a gut reaction to something offensive or mean-spirited. What does STG mean?U Jelly is often used to goad someone online or in-person because you possess an article that they do not have, or because you have attained some kind of gamer achievement or minor online fame. However, as with many other abbreviations meaning "I love you," it should not. ”. So, if you ever heard OMG (O My God), another popular acronym, ISTG won’t surprise you anymore. ISTG. Today, I'll walk you through what ISTG means in text. ISTFG, if you don’t stop playing your music so loudly, I’m going to lose it. ISTFG. The origin of ‘ISTG’ can be traced back to the phrase “I swear to God,” which. When used in text conversations, ISTG retains its original meaning of “I swear to God. The phrase was later. ”. In simple terms, “istg” stands for “I swear to God,” a popular expression used to emphasize the truthfulness or intensity of a statement. This expression is used to emphasize the truthfulness or seriousness of a statement. ISTG is often used in informal conversations, texting, and on social media platforms. Essentially, ISTG is a shortcut way of saying "I. ISTG is an acronym that stands for “I Swear To God”. Social media platforms: Snapchat, Instagram, Twitter, TikTok, and more. The ISTG definition includes a short acronym for a phrase that reads as ‘I Swear To God’. One such popular slang on platforms like Snapchat is ‘ISTG’. It can be used to convey extreme seriousness, exasperation, or surprise, and is usually used outside of a serious religious. Guarantee. Whenever a TikTok user opens their app, they are directed to their For You Page, which is a stream of videos that TikTok thinks that user will like. What Does ISTG Mean? In internet chatting and text messaging, the acronym “istg” actually means the phrase “I swear to God. Specifically, as internet usage is increasing daily,. Likewise, if you have ever seen the text code "ISTG" in texting and wondered what does ISTG mean in text. It is commonly used in text messaging to express the seriousness of a situation or to assure that a statement is not a joke. What Does Istg Mean? The acronym ISTG stands for “I swear to God. 3. HMU meaning: hit. It’s a widely used acronym in text messaging and online chatting on social networking sites. ISTG is an abbreviation commonly used in text messaging and online communication, particularly among younger generations. ISTFG. It's used express emotional sincerity or to seem intimidating. But while the slang term ISTG is harmless, other teenage slang terms could indicate that your teen is talking about risky behaviors or communicating with potentially dangerous people. "I swear to. -ISTG that was the best pizza ever! -I put your racket back in your duffle bag istg. Summary: · The added I at the beginning just refers to the person that is saying this, so ISTG means “I Swear To God”. Let’s talk about the other meanings of this common abbreviation and find out what it means for different people in different contexts. Use ISTG to show you’re not joking about something, or to express annoyance or frustration with something (or someone). TikTok lingo is hard to keep up with. "I swear to. It’s often used as an exclamation or a way to emphasize something and can be written in lower or upper case letters. This is also very similar to. It is very similar to ISTFG meaning, however, there are additional letters added within the acronym. ” This abbreviation is commonly used in informal conversations on various digital. It can often. ISTG can be used in various contexts and can have different implications depending on the conversation. ISTG is an internet slang initialism that conveys earnestness, annoyance, or surprise. This acronym often highlights the sincerity, seriousness, or exasperation of the person using it. Chronic Obstructive Pulmonary Disease D. This is also very similar to. For example, three sample text messages using the abbreviation ISTFG could be: 1. In contrast to standard text or audio messaging apps, Snapchat offers the unique ability to share fleeting live video messages that vanish as soon as they are. What Does ISTG Mean In Texting? Snapchat represents a real-time multimedia communication platform that takes a step beyond traditional messaging applications. ILYSM means "I Love You So Much. Simply put, “ISTG” stands for “ I swear to God . Annoyance and Assurance Another ISTG How to Use ISTG One of the hottest internet acronyms among today's teenagers is ISTG. ISTG stands for I Swear To God. ” Origin of ISTG. On the internet, there’s a lot of jargon and abbreviations that often confuse even the most seasoned internet user. This is only for close friends. It’s an acronym that people use to express the seriousness of a situation or to emphasize that they are not joking. " ISTG is used to add emphasis to a statement (usually a promise, threat, excuse or apology), or as an interjection which expresses surprise, skepticism or exasperation (similar to OMG ("Oh My God!") ). ISTG Meaning. One of the known acronyms is “ISTG” or “istg”. I Swear to God. What Does ISTG Mean? ISTG is an acronym that stands for “I Swear to God”. I swear to f**king god (ISTFG) is an abbreviation used to express exasperation, disbelief, or agreement. Overall, the acronym STG stands for “swear to God. Some of these words and acronyms are used on other video games and social media platforms too. You can use it to show your deep frustration, attest to the truth of something, or underline your beliefs. “ISTG” stands for “I swear to God,” and it’s commonly used in texting to express the seriousness of a situation or to assure someone that you’re not joking when. IMO meaning: in my opinion. -ISTG that was the best pizza ever! -I put your racket back in your duffle bag istg. Capitalization The slang term and abbreviation “ISTG” is typically spelled in ALL CAPS or all lowercase letters. A. It is used to emphasize a statement, a promise, or a claim, to express frustration, or to make a solemn vow. You will find information about the origin and other possible meanings in all types of information on this acronym, including its. Use Cases & Examples. This initialism should be avoided in professional situations or in conversing with someone who is religious. It's a close relative of the OMG (Oh My God). The texting term ISTG, which means "I Swear To God," tells people that you really do mean what you're saying. ISTG Meaning= Expression of Disbelief4. Testify. What does B) mean? Back when emojis weren’t a thing, ‘emoticons’ were used to add more emotions to the text. The slang abbreviation ISTG is frequently used as an interjection to express emotion or as an attestation of honesty. ’. ” How to understand Texting Abbreviations!! LOL and LMAO, SMH, FFS… and all the other ISTG Meaning A short video summarzing the most common. What does ISTG mean? ISTG means “I Swear To God”. What Does ISTG Mean In Texting? ISTG is an acronym used for “I Swear To God. What does 'ISTG' mean? "ISTG" stands for "I swear to God," an acronym usually used to express the seriousness of a situation or assure you're not joking when sharing a surprising fact. This phrase can be used to swear truthfully without having to use a more serious swear word, such as the word "God". The expression “I swear to God” is used for centuries and originates directly from the Old English word “swear” which means swearing. You might learn your child is using this slang term by chance when a text pops up on the phone screen. ISTG stands for: I Swear To God. Simply put,. Avoid using this abbreviation in business or professional settings because it is so casual. Complaint Of Patient Data C. You’ll find it all over the internet, from social media platforms like twitter and instagram to direct messages between friends. It can be used to express emotions, surprise, or sudden kind of feelings. This initialism should be avoided in professional situations or in conversing with someone who is religious. Here’s our round-up of the latest Roblox slang. ISTG is a slang abbreviation used in online messaging and texting that means 'I swear to God. So, if you ever heard OMG (O My God), another popular acronym, ISTG won’t surprise you anymore. ”. What Does Istg Mean In Text? I swear to God ISTG means “I swear to God. What Does “ISTG” Stand For? “ISTG” is an acronym that stands for “I Swear to God. Promise. Expand Your Lexicon: Discover 5+ Similar Words for ISTFG When it comes to texting, understanding similar. Specifically, as internet usage is increasing daily, people. ISTG is simply an acronym that means I swear to God. Jamie Grill / Getty. Similar to “I Swear To Fucking God” istfg, in that it is an escalation of the original term “I Swear To God” istg. Clear Of Patient Diagnosis B. It can also be used as an expression of sincerity, such as when a user is making a promise or expressing their. 2. For example: What does ISTG mean? ISTG is an acronym that means I swear to God. ISTG stands for "I Swear to God. ETA meaning: estimated time of arrival. ISTG stands for “I swear to God. TLDR meaning: too long; didn't read. For example, they might say “ISTG this homework sucks. showing only Slang/Internet Slang definitions ( show all 7 definitions) Note: We have 1 other definition for ISTG in our Acronym Attic. What does 'ISTG' mean? "ISTG" stands for "I swear to God," an acronym usually used to express the seriousness of a situation or assure you're not joking when sharing a surprising fact. It can be used to express emotions, surprise, or sudden kind of feelings. new search. By using “ISTG,” individuals can emphasize the sincerity or truthfulness of their statements, especially when sharing surprising facts or. What does 'ISTG' mean? "ISTG" stands for "I swear to God," an acronym usually used to express the seriousness. What does ISTFG mean? This page is about the various possible meanings of the acronym, abbreviation, shorthand or slang term: ISTFG. This should not be used in any formal setting, no matter how informal it may seem, via social media or text. ISTFG means “I Swear To Fing God,” a phrase used to emphasize sincerity or seriousness when making a statement. What Does “ISTG” Stand For? “ISTG” is an acronym that stands for “I Swear to God. It represents an empathetic or mildly shocked response to unexpected news or events. Like, "ISTG, if I get one more. Definition of ISTG in Slang/Internet Slang. ISTFG. So, the next time you see someone using “istg” in a message or post, you’ll know exactly what they mean. In a different context, “sw” can also mean “someone who. It is an expression used to emphasize the truthfulness or sincerity of a statement. . 4. STG means different things to different people but its most common meaning is ‘Swear To God’. 查看翻译. The phrase “I swear to God” has been used for hundreds of years and is basically taken from the Old English word “swear” which means an oath. Here’s what this multifaceted slang term means and how you may. The abbreviation ISTG is widely used in text messaging and online chat with the meaning "I Swear To God. ISTG can be used to express extreme seriousness, anger, or surprise, and is usually used outside of serious religious contexts. showing only Slang/Internet Slang definitions ( show all 7 definitions) Note: We have 1 other definition for ISTG in our Acronym Attic. Every TikTok user's FYP. While it may seem like a phrase that you would use in casual conversation, it can be so much more than that. The acronym ISTG is commonly used in text. ISTG Meaning What Does “ISTG” Stand For? If you’ve ever seen “ISTG” in a text message or on social media, you might be wondering what it means. This phrase is often used on social media while making public posts or in private chats. It is a reference to swearing or commitment to God that is not something to take lightly as it is a risk that the person who is saying it could be punished in the event of lying. Istfg Meaning Is: Istfg stands for “I Swear to Fucking God. This abbreviation is commonly used in informal conversations on various digital platforms, such as text messages,. What does GM mean in text from a guy?What does df mean in texting? In the realm of texting and digital messaging, “df” usually stands for “da fuq”, a slang and casual form of saying “the fuck”. ABC – This doesn’t stand for anything. This initialism should be avoided in professional situations or in conversing with someone who is religious. Further Reading: What Does NFS Mean: Here Is All-inclusive Information You Need to Know. Use Cases & Examples. 2006)Texting with friends is the best way to use this term. How Is ISTG Used? Use Cases & Examples. ISTG Meaning. In summary, ISTG is an acronym widely used in informal online communication. Prison gang. Looking for online definition of ISTG or what ISTG stands for? ISTG is listed in the World's most authoritative dictionary of abbreviations and acronyms ISTG - What does ISTG stand for?Definition of the term. B) used to be the symbol of a person wearing sunglasses with a smile on his face. More violent then just I Swear To God Learn what ISTG means in this quick and easy guide! Find out what the abbreviation stands for and how to use it in real life with this simple explanation. I’m beyond shocked. ISTG. Well, fret not – I’m here to help unravel the mystery for you. In texting lingo, “istg” simply stands for “I Swear To God”. '. This phrase is typically employed to express surprise, disbelief or concern over a given situation. One of the main uses of ISTG is in text messages or chats, either between friends or in a. Likewise, if you have ever seen the text code "ISTG" in texting and wondered what does ISTG mean in text. Origin of ISTG. ISTG Meaning. It is commonly. The”I” is the person who is saying it, while”F” is an expletive “F” can be an exclamation point added to the expression. It comes from the courtroom oath that traditionally said, “i swear by almighty god that the evidence i shall give shall be the truth, the whole truth, and nothing but the truth. The phrase “I swear to God” has been used for hundreds of years and is basically taken from the Old English word “swear” which means an oath. This is a common acronym that is used online, typically in text-based communication. ISTG stands for “I swear to God” and is often used on Snapchat to emphasize a point or express strong emotion. As in, I swear that actually happened. It is commonly employed in informal chats, videos, and posts to show seriousness and truthfulness. Throughout the years, a variety of terms have arisen which make it easier to communicate online. This phrase is often used to express frustration or exasperation with a situation or to emphasize the sincerity of a statement. ISTFG, I can’t believe she actually said that to me. STFU is an acronym that means "shut the fuck up. It can be written in both lowercase “istg” and capital “ISTG” letters. Do you know what ISTG means in a text message? Watch this video to find out when to use ISTG in a text message and what it means!What Does “ISTG” Stand For? “ISTG” is an acronym that stands for “I Swear to God. It is used to express frustration, anger, or disbelief. Pinky promise. I just won the jackpot on the lottery ticket I bought yesterday, ISTFG! 5. Key Takeaways: ‘ISTG’ stands for “I Swear To God” and is commonly used in text messages and online chat. ATP meaning: answer the phone. ABC means asking another player (or telling another player you’re ready) to make an offer, trade or perform a task in Roblox, such as roleplaying in a game. It could be used to define the frustration or annoyance you might have towards something or somebody. What does 'ISTG' mean? "ISTG" stands for "I swear to God," an acronym usually used to express the seriousness of a situation or assure you're not joking when sharing a surprising fact. What Does ISTG Mean in Texts or on Social Media? ISTG means “I swear to God” in text messages and on social media platforms like TikTok, Snapchat, Twitter, Instagram, and more. What Does ISTG Mean? In internet chatting and text messaging, the acronym “istg” actually means the phrase “I swear to God. Start the day smarter. Since this is a very casual acronym, avoid using it in. It is an acronym used to emphasize a belief in or commitment to the truth of a statement. The phrase “so what” is often used to express indifference or dismissiveness about the topic at hand. HMU meaning: hit me up. Here's what this versatile slang term means and how you can use it in your messages and social media posts. Meaning. Usually, students or the young generation use this acronym. ISTG is commonly used in text messages and other social media conversations as a way to emphasize the truth or sincerity of a statement. It’s a direct and sometimes blunt way of communicating that the information just shared doesn’t impress, affect, or matter to the person asking “so what. " “ISTG” meaning over text message. Going deeper into its meaning, ISTG sounds quite similar to OMG ‘Oh My God!’. Get all the news you need in your inbox each morning. It can be used as an exclamation, where users are expressing disbelief or shock. "I swear to. It’s also like STG. "Meaning; ISTG: I Swear to God: ISTG: Immigrant Ships Transcribers Guild: ISTG: Information Storage Technology Group (University of Twente; Netherlands) ISTG: Inter-Site Topology Generator: ISTG: Implicit State Transition Graph: ISTG: Integrated Systems Tech Group (Tampa, FL) ISTG: Innovative Science and Technology Group (est. Read Also: What does CFS mean on Instagram? Common Uses for ISTG . What does OTP mean in texting? “OTP” means “one true pair/pairing,” according to Merriam-Webster. Person1: I'm so exhausted. IYKYK meaning: if you know, you know. ISTFG means “I Swear To Fing God” and is typically used in informal texting to express frustration or disbelief. Page ContentsWhat Is ISTG Meaning1. Matching search results: Since the STG meaning is often expressed fully when in a verbal conversation, the term STG should only be used in casual conversations via text or on social media. ETA meaning: estimated time of arrival. This phrase is used to emphasize the truth of a statement or assertion. suggest new definition. In summary, ISTG is an acronym widely used in informal online communication. ILYSM can be used to express profound affection. IYKYK meaning: if you know, you know. It is typically used to show appreciation of an act of kindness by a loved one. . When someone uses ISTG, they are essentially emphasizing. In conclusion, “ISTG” is an acronym that stands for “I swear to God. ISTG is an acronym that stands for ‘I Swear To God. It’s similar to the term ‘ONG. ISTG is an acronym that means I swear to God. ISTG Meaning= Honesty or Certainty2. There needs to be a TikTok user manual that includes a glossary because new abbreviations and slang words are constantly being churned out and I, a millennial, cannot keep up. Usage: “Oh nice, you finally finished it! Welcome to the club B)” What does BB mean?What Does ISTG Mean in Texts or on Social Media? ISTG means “I swear to God” in text messages and on social media platforms like TikTok, Snapchat, Twitter, Instagram, and more. The term comes from “shipping” within fandom culture. While some text codes (like brb, lol, and omg) are simple ones that parents can understand, it can be difficult for parents to understand many codes teenagers use nowadays. Usually, students or the young generation use this acronym. “I swear to God” is a common phrase that people use to show that they are telling the truth or to express their sincerity. I swear to fucking god. ISTG Meaning= ThreatUse Cases & Examples. The”I” is the person who is saying it, while”F” is an expletive “F” can be an exclamation point added to the expression. ISTG is an acronym that is short for “I swear to God”. The phrase originated as a method for people to express a greater level of certainty about a statement they’re making in a conversation. OFC meaning: of course. FYP means For You Page. "I swear to. Sub the Gamer security threat group. They prefer to work in traditional organisational environments, with people who take their. OTP meaning: one true pairing (a couple that fans prefer to all other. 2. ISTG is simply an acronym that means I swear to God. For example, if someone decides to message you with insulting comments about your hair, then you might reply with "STFU. It could be used to show how excited they are or to express. This is a casual phrase that many people use both online and in real life (imagine someone exclaiming “I swear to God!” when they’re frustrated or emphasizing a point). GTFO can be used to express disbelief or displeasure. It is commonly used as an exclamation or interjection. The slang abbreviation ISTG is frequently used as an interjection to express emotion or as an attestation of honesty. ” Definition: Istfg is an acronym for “I swear to f Up. I swear to fucking god. What Does ISTG Mean? Introduction. Pushin P is a popular phrase in the Bay Area and Texas that was popularized by Atlanta rapper Gunna. A very dramatic phrase to be used only in exceptional circumstances. ISTG=Make a PromiseWhat Is ISTG Meaning in SlangIstg Slang Usage (Examples and Use Cases)ISTG Meaning on TikTokISTG Meaning SnapchatFAQs on ISTG Meaning1. Even though the phrase includes “God,” its meaning and uses aren’t considered religious. Its meaning is “I Swear To God,” and it is commonly used to add sincerity or emphasis to a statement. The media could not be loaded, either because the server or network failed or because the format is not supported. Confused about slang like cap, HB, ATP, and more? We defined some popular TikTok acronyms for you. Today, I'll walk you through what ISTG means in text and other text. STFG stands for Super Teacher Friends Group. OFC meaning: of course. " It is an internet acronym used in online chat to express frustration, surprise, or vehement assertion. This abbreviation is commonly used in informal conversations on various digital platforms, such as text messages, social media posts, and online forums. What does ISTG mean in the text? Ans. It is very similar to ISTFG meaning, however, there are additional letters added within the acronym. It’s also like STG. "I swear to God" isn't just texting slang – it's used in everyday conversations to emphasize the truth at hand. If you see someone using ISTG when texting, they’re probably emphasizing how serious they are about something. 1 definitions of ISTG. Here's what "ISTG" means and how you can use it in your next text exchange. The slang abbreviation ISTG is frequently used as an interjection to express emotion or as an attestation of honesty. ISTG stands for “I swear to God” in texts and on social media apps. Usually used after saying something ‘cool’. When someone doubts something you said, using ISTG is a way to make a solemn oath that most people respect and are more likely to believe. While some text codes (like brb, lol, and omg) are simple ones that parents can understand, it can be difficult for parents to understand many codes teenagers use nowadays. This phrase should only be used in casual conversation. ”. What does LFG ð mean? LFG as “let’s freaking go” has since become widespread in texts among friends as a way to excite or “hype up” one another about a particular event or situation. Swear to fucking god. The ISTG acronym is commonly used in response to a person who doubts something that you said. ISTG is an acronym used for “I Swear To God. It is a stronger version of the phrase “I swear”. What does 'ISTG' mean? "ISTG" stands for "I swear to God," an acronym usually used to express the seriousness of a situation or assure you're not joking when sharing a surprising fact. ”. – What does istg Mean in Text – ISTG is a popular online abbreviation among today’s youth. ONB is an abbreviation commonly used in texting, which stands for “Oh No Baby”. ISTG meaning is “I Swear To God” and is one of the most widely used acronyms in the English language. ISTG means I swear to God. ” Kids often use this to express frustration or exasperation. suggest new definition.