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1.
When one lifts one leg and dips ones nuts into something, a mouth, some sauce, a drink
Dude i think that dude just gave our ketchup a good Fah-Dunka-Dunk!

WOW thats a cool way to stir a drink dude

MAn when Dodd fell asleep i gave him the old Fah-Dunka-DUnk
by Fah-DUnka-Dunking mad man March 08, 2005