slut buffet
A chick who is so much of a slut, that theres always enough of her as a guy wants to go around.

A chick who you know does anything sexual to all of her guy "friends" any time she goes out to "the movies" with them.

A chick who will turn tricks (any trick) for money. After all, you do have to pay for a buffet.
Kelly: "Man, that chick always does everything and anything sexual to all of her so-called boyfriends."
Jack: "She's a total slut buffet."

Joe: "I heard that Lisa will do whatever a guy wants her to for a low price."
Mark: "What a slut buffet."