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A method created due to the movie "Teeth" where a vagina with a full set of chompers bites off a dick.

When one is overly paranoid after seeing the film, a pinkie is carefully put in the vagina first inorder to be sure there won't be any "surprises."
Shit - I just saw the movie "Teeth" and will NEVER be the same again. I vow to forever use the pinkie test.
by Rexperience January 06, 2010
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