Buttshroom 

When a large girl wears both a pair of low riding pants plus a belly showing shirt, the look from behind resembles a mushroom hence, ButtShroom

Um, maam, you should consider a more flattering shirt as in that getup you are really just growing a buttshroom.

Buttshroom by Bob Goatu October 6, 2006

buttroom 

The space required for one’s bootie.

Scoot over. I need some more buttroom.

buttroom by MisterDoctorProfessor December 8, 2021

bushroom 

a portion of the pubic hair that hasn't been shaved by a woman wearing a swimwear.

Marc went to the hotel pool and noticed a woman with a wicked bushroom.

bushroom by frozencactus May 1, 2009

Bathshroom 

The word bathshroom contains the words "bathroom" and "mushroom." These fungi appear in the most discreet of corners, usually in bathrooms where moisture and mold collect and sprout colonies of the most decrepit kinds.

You know you have stepped foot in the nastiest of lavatories when you stumble upon some tile fungus. "I swear I saw bathshrooms growing in that bathroom while I was taking a leak. Somebody get these people some Mr. Clean!"

Bathshroom by Dionysis Connor April 28, 2011

buttscroob 

Butt Scroob is when you always rub your butt cheeks in other peoples faces, as well as sexual rubbing of the inner butt cheek

Come here you silly ButtScroob

buttscroob by ButtScroober2000 January 15, 2015

Bumshroom

A type of mushroom that has the shape of a bum. These can be found in a 'fry up' but also discovered in a dark, damp place.

That is not a fry-up #NAFU, it's a plate of Bumshrooms

Bumshroom by Will Sogs August 31, 2018