mud valve

A person's asshole or anal sphincter.

I'm going to open the mud valve"

by Agit Prop January 2, 2007

mud valve engineer

the homosexual equivalent to a gynecologist

"oh Wesley i apear to be stuck in your mud valve!"
"Don't worry bruce, shuffle over and get the yellow pages and find the oncall mud valve engineer"

by joshy wash November 3, 2008