Butt, A-hole... what have you. Used almost exclusively with "up the-" as in "up the wahzoo" - meaning being inundated and bursting.
"The plane was overbooked. They had passengers up the wahzoo."
by Billy Caeser December 23, 2007

Rubs himself during class infront of hot people usually of the opposite sex and claims to be looking for a writing utensil.
by WAHZOO January 11, 2009
