Definitions by ElKeeblerElf

Pump Muffin 

A cute looking girl who has somewhat of a muffin top, but not to much to be considered a pig; One night stand material. Also, you cannot consider her good looking enough to have continued relations with.

Alright, we got the three slam pieces, Jim, you got the pump muffin

Pump Muffin by ElKeeblerElf October 2, 2010