A big dookie like a chocolate swirl ice cream sundae right on the head of an unknowing loser, creating the image of HAAJI from Johnny Quest. Thus the turdbin is born.
by Captain Cornhole March 14, 2004
When someone craps on your head with a long turd and a swirling motion. the result is a pile of dookie shaped like a turbin. hence: the name turdbin
I gave osama bin laden a turdbin.
by Kevin Mathis March 12, 2004
by ihoasa123 April 26, 2010