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The act of sliding ones geintals in the crevice of another person, i.e.back of knee, inner elbow, armpit, etc. This is a sexual act that breakd down the barriers and leads to a closer freakier crevice sexual relationship. Also known as CJ's.
John: Yo, Jess gave me the best crevice job ever last night. The inside of her elbow is so smooth.
Luke: Dude you're so lucky!
by Anon345678 April 09, 2014
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