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1. the bruises on your knees from giving head.

2. the scraps and bruises on your knees from grinding in the "on top" position
girl: OW! look at my knees! they're bruised as hell.

boy: but weren't those sex knees so worth it?
by indubiately April 19, 2009
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Aug 9 Word of the Day
A term coined by Terrson to represent a form of Jenga where one removes an article of clothing whenever the tower falls.
It was a fearsome sight indeed after the tower fell for the last time, after that, strip jenga was forever banned in the lounge.

<Terrson> My name shall not go down in history as the guy who codified Strip Jenga.
Guess again, Terrson.
by OmniBot August 05, 2008
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