Butt

butt

Bottom.
Not good, lacking. "Get yourself some toilet paper 'cause your lyrics is butt" -- A Tribe Called Quest(Low End Theory)
The filter of a joint or a sigarette. -- "I watch the sky I take another breath I smoke my Newport to the butt" - 2Pac - Never had a friend like me(Gridlock'd ost).
The subject or topic of a joke. "Don't make a joke allright, you'll be the butt of it" -- Saigon - NY Streetz(Warning Shots)