From the 1930's (circa). Refers to a person of questionable intelligence. The size of the brain being given relative size of a human knuckle. Similar to pinhead.

That guy just sat on a bench with wet paint. What a knucklehead.

knucklehead by The Phat Doctor December 27, 2004

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Respect Knuckles

Instead of high-fiving, why not use the gangsta way, Respect Knuckles. This is where both people take their fists and slowly tap them together on the knuckles, showing respect to that person. This is a handy substitute for dangerously clapping the hands together, quite possibly causing a bone to be broken in the wrist.

"High-five!"-Sharko
"No man, respect knuckles."-Quinn
"RESPECT KNUCKLES!"-Voice over during respect knuckles

Respect Knuckles by -The Omega Master December 17, 2004

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Arkansas Knuckleball

When engaging in intercourse with a woman from behind in the vagina, a quick, sudden and forceful penetration of the anus. Often occuring as an accident, it may also occur as a "How do you do!" to simply ring her bell.

Last time I was bangin'-it-in with that bitch, I gave her a donkey punch, so to spice things up, I gave her the ole' Arkansas knuckleball!

Arkansas Knuckleball by AssInClass December 21, 2008

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brass knuckles

A weapon consisting of heavy brass (the cheap plastic ebay ones dont count) that have holes for you to put your fingers through, in order to get a grip and form a fist. Once this is done, you can use the weight and hardness of the brass to injure soft flesh. Pretty effective at ruining people's day, but if you dont know how to fight you may get it taken off your own hands and then used against you. Imagine that.

You try to get slick, you bust a little chuckle, you're gonna get smacked with my gold finger kuckles.

brass knuckles by Leandro October 30, 2004

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