when you are turtle heading, or plain taking a dookie, and you "cut loose" the protruding mass of excrement by clenching your sphincter tight mid turd
"damnd that was a long crap, i had to decapitate the turtle before it touched the water"
by Dan the pc butcher March 1, 2008
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When you have a turtle head pertruding out of your anus and you clench the anus hole and the turtle head falls off. Commonly known as the decapitated turtle.
Holy SHIT, my turtle head fell off in my pants and has left thick skids oh damn. Stupid decapitated turtle, shouldnt clench my anus when so excited.
by Lee puff and dust August 28, 2009
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