"clowning" in the noun sense
1. buffoonery, clowning, japery, frivolity, harlequinade, prank
acting like a clown or buffoon
2. drollery, clowning, comedy, funniness
a comic incident or series of incidents
"clowning" in the verb sense
1. clown, clown around, antic
act as or like a clown
Source: WordNet® (An amazing lexical database of English)
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