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3.
Taking a mean shit on someone's turban
Its a blanket! It's a towel!. No I just took a super shit on his turdbin.
by ihoasa123 April 25, 2010
 
1.
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
 
2.
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.
I gave Mike a turdbin while he was asleep, then railed the stripper.
by Captain Cornhole March 13, 2004