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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fucklehead

Lit., "fucking knucklehead" Usually reserved for someone who stubbornly adheres to false principles or consistently acts irresponsibly; generally, an idiot.

"She hates your guts, you fucklehead! Quit calling her!"

fucklehead by Darhug April 9, 2009

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knucklehead townie

A knucklehead townie is the exact opposite of a redneck country boy, knucklehead townies are usually bisexual don’t own firearms, hunt or fish and hate camping. Knucklehead townies tend to be liberals who can’t weld.

Hey bro, did you see that knucklehead townie in the designer jeans try to lay a greasy bead? he wants to suck my peen.

knucklehead townie by Jules Winnfield May 27, 2018

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knucklehead

A dunce. A dummy. A very stubborn person or animal.

I told him how to do it, but he would not listen, the knucklehead!

knucklehead by Merrily McCarthy July 17, 2003

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