look up any word, like bukkake:
 
1.
n; a woman who's ass doesn't do the rest of her justice.
Man, I like Jennie but she's such a butter ass!!! I want something to grab dude. I need a girl with a ghetto booty!!!
by Markelie October 18, 2010
 
2.
hot as hell face but nasty ass!!!!
damn that girl is hott as hell but the ass is disgusting!!!!
by natty July 21, 2003
 
3.
A girl who one might generally call a butterface but who possesses an ass worthy of attention such that it compensates for and exceeds other possible faults. Butterass negates slight to medium cases of butterface.
Him: "Damn, man, she's a bit ugly..."
Me (Pointing at her posterior): "Maybe...butterass"
Him: "Oh damn!"
by buttman99 January 03, 2012