Main entry: prank, put-on, caper, trick, antic, joke
Definition: a ludicrous or grotesque act done for fun and amusement
Main entry: antic, clown, clown around
Definition: act as or like a clown
Main entry: fantastic, fantastical, grotesque, antic
Definition: ludicrously odd
Usage: Hamlet's assumed antic disposition; fantastic Halloween costumes; a grotesque reflection in the mirror