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2.
After wiping your ass from taking a shit, you quickly slap yourself in the face with the paper. Chances are there is going to be shit on the paper, sometimes there isn't due to the ghost shit.
After I played Shit Roulette there was a residue of hershey squirts on my cheek.
by Shane Marquis October 14, 2007
 
1.
Here's how to play: You and your buddies smoke weed in a pipe and pass it around the circle. Players keep hitting the bowl until someone sucks the ashes into their mouth (a.k.a. shit in the mouth).
We played shit roulette last night and left with black tongues.
by Scatmouth December 26, 2013