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When one party puts a Mentos up there rectum and with or without help from others forces the neck of a two liter bottle into their anus spraying pop into the rectum causing a chemical reaction.

A nitro powered variant of the Poocaino.
" Holy shit he got the snakebullet!!, there was a loud ripping sound followed by a woosh and then there was shit all over the ceiling!"
"man I wouldn't want to have to clean that up, Coke is real sticky."
by Lee Pipes June 09, 2007
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