look up any word, like blumpkin:
 
1.
1. a bum
2. a sweet ass, the one where once you see it you get this uncontrollable urge to go jump on it and ride it like a tricycle
Nani: "Alright bro, that sloot has a great bumtank."
Erock: "Affirmative"
by erock March 22, 2004