Omori 

Omori is an indie psychological horror role-playing video game developed by OMOCAT.

Based on the director's Omori ひきこもり series of webcomics, the game tells the story of a hikikomori boy named Sunny and his dream world alter-ego Omori, exploring the real world and the surreal dream world to overcome his repressed fears and secrets. He is joined by a party of his close friends as they explore the overworld and engage in turn-based battles against fantastical enemies, with status effects based on the characters' emotions. The game has two routes with multiple endings based on the player's choices.

Overall, a pretty fun game, however it is not for everyone. If you're sensitive to harsh topics this game is not for you.

Omori tells a story about overcoming your darkest fears.

Play this game if you want a good story with charming characters.

Omori by LukeDaNoob March 4, 2021

OMG Meme 

1. The tradition of repeatedly saying or writing "Oh My God!" at any given place or time.

2. Typing the acronym, OMG on the internet daily.

3. A popular gesture or facial expression of being excited or surprised by 1 or more things.

OMG Meme is 1 of the most used internet memes and gestures in the world, as we know it.

OMG Meme by internet-memes.blogspot.com September 29, 2012

omnitextual 

Someone willing to text through a diverse array of messaging platforms.

Omnitextual: someone willing to text through a diverse array of messaging platforms.

He asked me if I preferred SMS, Facebook, or Hangouts. I said I was OK with anything, I'm an omnitextual.

omnitextual by SergejB January 20, 2016

OMAD 

One Meal A Day diet.

It is hard to eat enough calories in a day now that I am on the OMAD diet.

OMAD by RainbowDQ July 19, 2018

Omegalomaniac 

From the last Fall Out Boy single before their undefined hiatus, Alpha Dog. It goes with the word "megalomaniac," which is basically thinking your the shit, with the o added on the front so it looks like "omega" (To go with Alpha Dog). It's actually quite a good song.

Alpha dog and o-o-omegalomaniac

Omegalomaniac by tell rock&roll im alone again November 16, 2010

WTF-ometer

A person's level of disbelief, shock or surprise.

The moment Mary found out her boyfriend might be a distant cousin the needle on her "WTF-ometer" started twitching upward at a rapid rate!!!

WTF-ometer by talk2me-JCH2 November 5, 2017

Omni-man 

Why did you make me write this? You’re reading so that you can see every other definition for Omni-man die! Think Reader! This’ll outlast every fragile insignificant definition on this site. You’ll live to see these explanations be forgotten to dust and blow away! Every other one you read now will be gone! What will you have after 500 years?

I love Omni-man, too bad you made me write this definition for him.

Omni-man by Nobody's Business May 15, 2021