m12 

Four orders of magnitude above a m8. If someone is your m12, they are not just your friend anymore, they are your soul mate.

Here is a simple chart to explain:

m7 - acquaintances

m8 - pals

m9 - really good friend

m10 - best friend

m11 - in love

m12 - soul mate

She is the love of my life, she is my m12.

m12 by Alex-2598 April 23, 2023

m12 

a superior word for the term "m8"

sup m12

sup, m8

fuck you you are unsuperior

loser

m12 by word creator 3000 February 17, 2024

I'm 12 years old and what is this? 

Internet meme that came about after some kid said it on a comment when Youtube.com was raided with porn. Usually said after something that adults talk about/kids wouldn't get. Not to be said in real life, like most other memes.

Anon A: I was wondering, do you guys prefer anal sex or vaginal sex?

Anon B: I'm 12 years old and what is this?

---
Anon A: Do you think its worth it to have sex without a condom?

Anon B: I'm 12, what is this??
---
Anon A: My girlfriend just blew me, shit was SO cash.

Anon B: inb4 I'm 12 and what is this

Anon C: I'm only twelve, what is this?!

I'm 12 years old and what is this? by JD13 July 25, 2009

I'm 12 and what is this? 

Sometimes used ironically on image boards like 4chan when someone posts off topic or offensive material on a board where such content is inappropriate. This is usually posted in combination with sage to avoid bumping the thread.

anonA: Furry time!!!1 (explicit image of fluffy creatures)
anonB (sage): Please go away.
anonC (sage): I'm 12 and what is this?

I'm 12 and what is this? by greiz June 7, 2011

m-12 

a squad that pulls all nighters . The m stands for midnight & the -12 stands for the twelve hours of no sleep

"You guys wanna m-12 tonight?"

m-12 by imfailingatlife July 31, 2016