A person who is a true hardcore fan of the tv show "bones".
Girl 1 : What time is it?
Boy: It's 4:47
Girl 1: OMG OMG OMG MARRY ME! THAT'S THE TIME WHEN BOOTH AND BONES HAD SEX.
Girl 2: You're definitely such a bonehead!
by ElephantsArentPurple June 28, 2012
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A person who acts like a fool in the background of a TV show being filmed, usually a news report. David Letterman first used the term.
The bonehead was jumping up and down and waving behind the news reporter doing a report
by Hayleyyyyyyyhi. July 10, 2007
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A person who appears at the back of every photo and/or video, just randomly.
As seen on Chasers War On Everything.

Did you see Chas bonehead at the Logies? It was so cool! I would never have the guts to do that!
by sande March 24, 2007
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A stupid person.
Not a smart individual.
Thick skinned person.

Stubborn to a fault.
My boneheaded boss should be fired. I obviously smarter than he is.
by one221212 December 16, 2011
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The term first used by David Letterman.

To Bonehead is to perform an act like jumping up and down, talking on a cell phone and holding up a sign behind a live television show, usually behind a news reporter doing a newscast.
The bonehead was doing a funny sort of dance behind the news reporter for attention and for a few seconds of television stardom.
by HayleyLikesToTango August 17, 2007
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-n- a rockhound or mineral specimen collector obsessed with collecting or digging for fossilized dinosaur bone.
Digging in the Utah dirt for fossils made me feel like such a bonehead.

The bonehead couldn't stop buying fossils on ebay.

The bonehead cut such an amazing dinosaur bone cabochon.
by Jessa1155 March 13, 2010
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A short term for a neo-nazi skinhead in the punk subculture
"Boneheads, fuck off! Nazi Punks, fuck off!"
by calvincal September 5, 2023
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