bum shroom 

Used to insult a person. Refers to someone who would try to consume magic mushrooms through their anus, usually because they are retarded.

Rennie : wtf is a bum shroom?!

joanne says: i dont know : (

Rennie says: ud have to be on shrooms to think that was a real thing

joanne says: but i like it actually ! i just invented a legendary insult "here you ya fuckin bum shroom!"

bum shroom by tripper1988 March 30, 2010

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

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