A person who is acting or being weird silly .
Why are you acting like a bonehead?
by friskychick September 4, 2016
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What traditional non-racist skinheads began to call scruffy glue-sniffing sleazeballs who pretended to be skinheads in the late 1970s. Now it specifically refers to neo-Nazi/white power skinhead imposters.
When I left the pub, a bonehead gave me a Hitler salute so I smacked him in the gob.
by Truth hurts March 12, 2003
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ridiculously simple.
seemingly idiot proof.
functioning at a Neanderthal level of complexity.
"it's a bonehead beat but it works."
by metaball March 9, 2006
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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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