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.
by Lady Products January 17, 2009
Get the Lumpsackmug. lumpsack: Rosie O'Donnel
by esri February 6, 2010
Get the lumpsackmug.