bugwump 

The act of placing the body in front of a fire hydrant and subsequently bending over. After a friend unscrews the top of the hydrant the strong stream of water pushes your anal cavity up through the mouth.

Man, I just got bugwumped!

bugwump by Slippery Pete May 1, 2003

Bumwumpus 

A person with a really large butt that usually makes the sound of wamp.

Larry distracted me in class, all I heard was wamp. I bet he's a bumwumpus

Bumwumpus by PandaBoyRed March 9, 2021