butt face muncher
One who is known to munch on the faces of butts, or an individual so irritating that you're almost positive that they munch on the faces of butts. See also: Ass hat.
Man, Carrot Top...what a butt face muncher.
monkey faced butt muncher
A rim job finished off by giving a raspberry.
I walked into the bathroom and heard the end of a monkey faced butt muncher. I want to cut off my ears.