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When one man sticks his index finger into his colon and wiggles it around until it is covered in feces and then jams it into the ear of another unsuspecting man, preferably hobo

(can also be preformed on a woman if shes one of thos ugly lesbians)
I tickled john powers's brain with a dirty willie
by Ben Preston December 01, 2006
While doing a girl doggystyle you put your finger in her butt and the put it
in her ear!
Dirty willie
by tommy baker February 14, 2009