Insane V's definitions
To have a firm grip on ones cock and sucking them off with your knuckle's bulging out of your hand to show your hard work.
by Insane V April 2, 2004
Get the Knuckle Down mug.My friend John gets AMPED when drinking mountain dew and listening to lil john!! WHAAAATT!! OK!!! YEEEEAH!!!
by Insane V April 16, 2004
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