cheek flaps 

the visible bottom portion of a womans buttocks as seen below her shorts or skirt.

dude, her shorts were so small you could see her cheek flaps!

cheek flaps by GeekTard April 4, 2011

crack flaps 

butt cheeks

Damn, my office is hotter than the inside of Dom Deluise's crack flaps right 'bout now.

crack flaps by A-Boogz July 3, 2014

Pissy Flaps 

A female with urine all over her vagina. So much that she has a tendency to stain things when seated.

Who the fuck pissed on the sofa man!?

That was the fat bitch man, she just sat down, she had a right pair of pissy flaps

Pissy Flaps by b2kthegod March 28, 2016

greasy flaps 

This is a way to describe a female with a disgusting vagina which gives off a rather fishy odour as well as a considerable amount of lady juice.

I had sex with my girlfriend yesterday, it was fantastic! Her greasy flaps provided fabulous lube.

greasy flaps by King of Banterbury July 25, 2016

Kooter Flaps 

Refers to a woman's vagina.

Those are some nice Kooter Flaps you got there girl.

Kooter Flaps by HepatitisSean43 November 14, 2016

Fart Flaps 

Butt cheeks.

That one passed right through the fart flaps.

Fart Flaps by TheBanchou July 8, 2017

yawn flaps 

Momentary loss of hearing accompanied by a slight loss of pressure when yawning, causing the sufferer to become temporarily deafened to comments from others.

"What was that Gerald, I didn't quite hear that I had my yawn flaps on"

"Hes being a right dick today, I'll tell him when he's got his yawn flaps on"

yawn flaps by Crystalfairy July 10, 2017