Definitions by Grandpa McFack

Chump 

Name given to a girl with no boobs, just two random lumps where they should be.

Chest+Lumps=Chump

Dylan: Hey man, look at that girl over there.
Spence: She doesn't even have any tits. They're just...lumps.
Dylan: Yeah, what a Chump.
Spence: Riiiiiight.

Chump by Grandpa McFack January 2, 2008