Ducktfisting is a human sexual act that involves sticking your hand up a duck's ass, and then banging chicks with the bill, head, and neck of the duck. This is usually only problematicwhen the duck falls off and gets lost in particularly cavernous women.
Jacquesgrabbed Phred and went duckfisting last week. They duckfisted some serious sluts, and, unfortunately, lost one of their ducks.