1 definition by BillCliton

When double fisting isn't enough, you move onto a foot. Then two feet. Then your entire lower body. You then proceed to Potato Sack. You enter a chick's vagina much like you would a potato sack.
Person A: Dude that chick was so loose last night
Person B: How loose?
Person A: Dude I fit all the way into her vagina and I totally started Potato Sacking that bitch
by BillCliton June 14, 2010

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