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1.
People who jump in front of, or hang out behind people who are being filmed having a photo taken off.
They often wave to get on television.
"Check out those boneheads on the news"
"Someone is boneheading in this photo"

When news reporters are on the streets, people try to get on camera and "bonehead" by waving to the camera.
by mrmooz June 01, 2007
26 7