ba dink-a-dink 

A small, usually cute, rear end on a female. Ant. ba dunk-a-dunk

She's got a little tattoo to go on her ba dink-a-dink

ba dink-a-dink by teeny July 6, 2004

ba dink-a-pink 

an intoxicated male that thinks he can get it but as a small limp biscuit

I went home with this stud and he was a ba-dink-a pink

ba dink-a-pink by sunishine May 13, 2005