Someone who has just made a mistake or done something wrong. Often used in a joking manner between friends.
After arriving at the ski resort Pat discovered that he had forgot his skis to which his friends responded "Pat, you're a knuckle head!".
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Commonly referred to as dap, a fist on fist greeting traditionally given as a sign of respect. However, "knuckle tap" is most often used amongst Caucasians.
Daniel: "I played a superb match of polo the other day, and I received several knuckle taps!"
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The growth of an inflammed, festered, and bloody hemorrhoid that creates a groove-like affect in your feces.
Dave, don't do it. Jeff has an ass knuckle, that's not going to be fun.
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To slip one's knuckle into the crack of an unsuspecting victim. Similar to a credit card but using the knuckle.
When Sally bent down to pick up her shoes, Bryan reach over and gave her the 'ole knuckle butt.
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Wow jones was a fuck knuckle to jump off that roof!
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a driver that can only be visable by their knuckles on the wheel as they are either too small or the seat is too far back.
most commonly seen with elderly female drivers or women in mini coopers wearing beatle eye sunglassess.
i nearly got run of the road yesterday. didnt see their face as it was a knuckle driver
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V. The act of female masturbation so frequent and furious that one's knuckles become raw from constant friction and moisture.
"While my partner was away for the summer, I spent my days and nights totally knuckle-dusting the shit out of myself".
"The pain of knuckle-dusting is nothing compared to the pain of loneliness and celibacy".
"Knuckle-dusting is the chain-smoking of sex".
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