Definition of "bobblehead" [bobblehead]

• A collectible doll with a bobbing head (noun)

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• "Maybe the bobblehead is a decapitated Osama bin Laden, and Agent Black is confused because the head has been severed from the body and is resting at Madison’s feet."
• "Given that there have been tremendous advances in bobblehead technology over the past year, that the Justice O'Connor doll includes hot double bobblehead action, and that the doll depicts Justice O'Connor as she looked many years ago, before she was bonked on the head by a toppled wooden beam at the grand opening of Philadelphia's National Constitution Center in July 2003, I am astonished that the doll failed to sell for more than the Chief's doll, let alone for $200."
• "Andray Blatche, back after missing one game with a sprained right shoulder, had 17 points and 13 rebounds on the night his bobblehead was the featured giveaway."