The Number 11 

A hairstyle more commonly known as "The Bowl Cut" or "Mushroom Cut". It is a cheap haircut given mostly to little kids or fashion oblivious adults. The origin for this word comes from the streets of San Francisco, where outside small asian barber shops, a sign showing various haircuts available corresponds to a number chart. The #11 being the bowl cut. This hair/number terminology is Universal in the streets of San Francisco and hair stylists alike.

"Oh my God, did you see that guy?! He totally had The Number 11. What a weirdo!"

or

"Hi there, could I please get The Number 11? I wish for my hair to look very strange today. Thank you.

The Number 11 by Klexington January 27, 2009

The 9/11 

When you’re with your bois and someone got a boner and you punch that shit and it go limp like the twin tower collapsing

LMAO he just got the 9/11

The 9/11 by Mattortega11 October 3, 2019

The 5'11'' stigma 

The fact that 5'11 is seen as short, but someone who is 6 feet tall is seen as tall.

The 5'11'' stigma in action
------------------------------------------------------------------------
Anthony, who is 5'11'': Hey Beth wanna go out sometime?
Beth: No way, short stack.
Charles, who is 6': Sup, Beth, interested in a date?
Beth: Wow, you're like a giraffe! 7:00 good?

Anthony: The 5'11'' stigma is a real bitch.

The 5'11'' stigma by Shepherd Guy May 19, 2018

the 9/11 

Deviant Sexual Manoeuvre #12

This requires some help. Blindfold your girl and do her from behind. While she is in the middle of a moan your two friends come out of nowhere and jam their dicks in her mouth and proceed to face fuck her to climax.

"Last night I gave her the old '9/11'

the 9/11 by Devian SExual Manoeuvre! March 1, 2005

The 9/11 

When your boyfriend secretly masturbates and just before ejaculating, grabs their partner’s face and yells “HERE COMES THE AIRPLANE!” and cums in their mouth.

“I can’t believe my boyfriend 9/11’d me last night”

“I just gave my girlfriend the 9/11 last night”

The 9/11 by FrogDawg June 25, 2023

The 9/11 

The 9/11 is a sexual technique performed by 2 men and a woman. The men have to lie down with their penises relatively close to one another so they resemble two towers. Then the woman has to "slam" the towers by inserting them in the vagina and anus or mouth one after the other.

Dude, the 9/11 we pulled last night was so dope. No homo though

The 9/11 by Volteh August 19, 2017

The 7-11 

The act of having sex and sucking the semen out of the condom after ejaculation like a semen slurpee.

Dude I heard Joey did the 7-11 after he banged Kasi last night

The 7-11 by betts express January 3, 2011