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clown(noun)

a person who works in a circus, performing funny acts (usually ridiculously dressed).

καραγκιόζης (μτφ.)

clown(noun)

any person who behaves ridiculously.

κάνω τον καραγκιόζη, φέρομαι γελοία

clown(verb)

to behave ridiculously

Stop clowning.