A foolish, clumsy, or stupid person; someone who acts in a silly or incompetent way.
Possibly from Spanish 'bozales' (wild, stupid), or from the Yiddish 'boze.' The word's origin is uncertain, but it emerged in American English in the mid-20th century.
Ronald Reagan called a 1984 microphone test 'We begin bombing in five minutes'—and media outlets called him a 'bozo,' not knowing it was meant as a joke. Context collapse through language!
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