look up any word, like cunt:
 
2.
Sir Mixalot likes them and he cannot lie-- His other brothers can't deny.
Sir Mixalot: I like big butts and I cannot lie.
Other Brothers: We can't deny.
by Sir Anthony Ray October 25, 2008
 
1.
big butt is a girl with a big ass
sarah mendez is also known as big butt by her boyfriend sexy man gil
by pimp daddy dollars March 02, 2005
 
3.
A person with a large behind..also calld big booty, etc.
Steve: "Man That Girl Has A Big Butt"

Blake: "Ya, Krista R. Sure Has A Big Butt"
by wacky lou May 18, 2009
 
4.
a real loser that is very stupid and does nothing but be a loser all day
omg aysha is deffinatly a big butt
by sicko13 July 26, 2011