Lumpsack
Usually found on fat people; The furthest south, and usually the biggest roll on your stomach. Can be seen bulging out of high waste pants. The waste of your pants usually gets stuck in between your lumpsack, and other role.
The fat receptionist set her clip board down on her lumpsack.
lumpsack
as in sack of lump. urban translation... one who is lumpy.
lumpsack: Rosie O'Donnel