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knee j, blowjob, bj, hj, handjob, job, orgasm, sperm When a male or female does the knee orgasm trick on a female.
stinky steve: bro i just did a knee-j on becca....
andy: dude did she moan?
stinky steve: yeah bro it was the best knee-j ever
by thatruth34 December 05, 2007
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When a guy stands against a wall and a girl gets on her knees and voraciously blows him
Nick: I was really having a bad day until Tara gave me a knee j.

Tara: My knees hurt, can you get me some lotion.
by nickgolf10 July 19, 2010
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