---
title: "OMG · GenZ Decoded"
description: "An abbreviation of “oh my God” expressing surprise, excitement, disbelief, or strong reaction."
url: "https://genzdecoded.com/blog/omg/"
lang: "en"
published: "2026-07-19"
modified: "2026-07-29"
image: "https://genzdecoded.com/og/blog-omg.jpg"
alternates:
  es: "https://genzdecoded.com/es/blog/omg.md"
---

![OMG, a GenZ Decoded word deep dive](https://genzdecoded.com/og/blog-omg.jpg)

# OMG

interjection/oh-em-gee/also: O.M.G., omg

An abbreviation of “oh my God” expressing surprise, excitement, disbelief, or strong reaction.

By [Cal Hewitt](https://genzdecoded.com/about/), Gen X · Published Jul 19, 2026 · Updated Jul 29, 2026

Origin

British naval correspondence, later…

Around

1917

Popular on

Global English-language texting

Meaning

## What it means

OMG is a versatile reaction marker whose tone can be sincere, comic, shocked, or exaggerated. It became a digital staple but has a documented printed history that is much older than the internet.

See the quick definition in the [OMG dictionary entry](https://genzdecoded.com/dictionary/omg/).

Usage

## How to use it

- “OMG, the tickets actually went through.”

    Excited surprise.

- “OMG, that ending was wild.”

    A reaction to entertainment.

Origin

## Where it came from

The Oxford English Dictionary’s earliest documented use, reported by Guinness World Records, is Admiral John Arbuthnot Fisher’s 9 September 1917 letter to Winston Churchill, where he wrote O.M.G. for Oh! My God!.

Who coined it

Commonly credited to John Arbuthnot Fisher (1917), well-documented.

- [https://www.guinnessworldrecords.com/world-records/104055-first-instance-of-omg-in-print](https://www.guinnessworldrecords.com/world-records/104055-first-instance-of-omg-in-print)

Geography

## Where it's popular

Global English-language texting, social media, and speech.

The first recorded use predates online chat.

Timeline

## How it caught on

1.  1917Fisher used O.M.G. in a letter to Churchill.
2.  1919The letter appeared in Fisher’s memoirs.
3.  1994An early documented digital-context use appeared on Usenet.

Heads up

## Common mix-ups

OMG was not invented by texting or social media. Its first documented written use is from 1917.

Quiz

## Test yourself

### OMG, the date

1.  When was OMG first documented in print?

    - 2017
    - 1997
    - 1977
    - 1917 **(correct answer)**

2.  Who wrote the early O.M.G.?

    - Winston Churchill
    - A TikToker
    - A Usenet user
    - John Arbuthnot Fisher **(correct answer)**

3.  What does OMG stand for?

    - Only my group
    - On message grid
    - Oh my God **(correct answer)**
    - Open media guide

// the shop [Shop LOST IN TRANSLATION shirts and hoodies for families who speak two kinds of slang](https://genzdecoded.com/shop/)

Related

## Related slang

wow[sheesh](https://genzdecoded.com/dictionary/sheesh/)[ikr](https://genzdecoded.com/dictionary/ikr/)[OMW](https://genzdecoded.com/dictionary/omw/)

Keep reading

## More word guides

- [OMW](https://genzdecoded.com/blog/omw/)
- [NSFW](https://genzdecoded.com/blog/nsfw/)
- [sheesh](https://genzdecoded.com/blog/sheesh/)
- [tf](https://genzdecoded.com/blog/tf/)
- [GD](https://genzdecoded.com/blog/gd/)
- [OTP](https://genzdecoded.com/blog/otp/)

Across the generations

## How every generation says it

- [How every generation says agree](https://genzdecoded.com/how-to-say/agree/)

FAQ

## Questions people ask

### What does OMG stand for?

Oh my God.

### Who first used OMG in print?

The earliest documented use is Admiral John Arbuthnot Fisher in 1917.

### Is OMG only for surprise?

No. It can express excitement, disbelief, annoyance, or embarrassment.

Did you know

The famous earliest example was written in a wartime letter, not a chat window.

Sources

- [https://www.guinnessworldrecords.com/world-records/104055-first-instance-of-omg-in-print](https://www.guinnessworldrecords.com/world-records/104055-first-instance-of-omg-in-print)
- [https://www.smithsonianmag.com/smart-news/the-first-use-of-omg-was-in-a-1917-letter-to-winston-churchill-145636383/](https://www.smithsonianmag.com/smart-news/the-first-use-of-omg-was-in-a-1917-letter-to-winston-churchill-145636383/)

[See what's trending](https://genzdecoded.com/trending/)[Browse the dictionary](https://genzdecoded.com/glossary/)