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Razor blades are inserted in the anus through a metal pole than the participant than does a poo, this is very arousing.. apparently.
Person 1: MAN I FEEL GOOD!
Person 2: Why?
Person 1: My mate paul gave me the poo grinder last night mmm hmm
by Candy Bove August 21, 2007

Words related to Poo Grinder

grinder poo poop shit