Definitions by Kackling

buttface 

a horrible ailment of which the sufferer has an ass for a face.
instead of talking, they emit large amounts of methane gas from slitted pores located beneath their inverted nostrils. This is a painful process for both them, and the surrounding people.

Person 1: "Hey, I heard Nick was a buttface, that's pretty funny"
Person 2: "It's actually a serious condition that is not a laughing matter. Too soon."

buttface by Kackling December 28, 2009