Silly or foolish people, usually used in a joking or slightly mean way.
From 'bozo,' which originated in American slang around the 1920s. The exact origin is uncertain, but it may derive from circus or carnival language. It evolved into a playful insult for someone acting foolishly.
The word 'bozo' became super popular in the 1980s thanks to Bozo the Clown, a famous TV character, which made it stick in American culture as the go-to funny insult for goofy behavior.
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