A fork of Rural Dictionary
AssPiss is the act of dropping ones trousers (pants), tucking the scrodum and penis behind ones legs, and proceeding to pee backwards. Most frequently occurring at fraternity recruitment events.
Nick: "Hey guys!" Crowd: "What?" (while turning to face Nick) Nick: "AssPiss 2011, whewwww!" Crowd: "What the fuck is wrong with that kid."