1) (adj) Not good, lacking. "And them rhymes you were kickin were quite bootylicious" -- Snoop Doggy Dogg (Dre Day ??).
2) (n) Bottom, ass. Or getting a piece of ass.
3) (n) Biblical, as in pirates booty or treasure. Since booty is stolen treasure, it could be good or bad. Often used in the negative today.
Something that men like to slap to assert their control over women(Hah!). It is usually located in the backside, right on top of the thighs and calves. If yours are large, round, and firm, then you are in for a painful life.
Chick 1: I need to make my butt smaller.
Chick 2: Why?
Chick 3: Because if it keeps getting slapped, then it will fall off.