A term describing a person's behind, implying:
a) great pleasure to be gotten from the spanking of
said behind, and
b) great amounts of
money to be gotten, were the owner of
said behind to lease it out to people.
Bro #1:
Man, the ass on that chick is pretty damn fine. I'd pay her 10 bucks just to touch it.
Bro #2: Yeah
man, that ass is spankable and bankable.