THESAURUS
fool around
antic, be foolish, be stupid, caper, caracole, carry on, cavort, clown, clown around, coquet, curvet, cut a dido, cut capers, cut up, dabble, dally, dance, disport, fiddle, fiddle with, fiddle-faddle, fidget with, finger with, flirt, flounce, fool, fool with, fribble, frisk, frivol, frolic, gambol, get funny, go haywire, horse around, idle, invite ridicule, jerk off, kid around, loiter, mess around, monkey, monkey around, piddle, play, play around, play the buffoon, play the fool, play with, potter, putter, rollick, romp, skip, smatter, sport, tinker, tomfool, toy, toy with, trifle, trip, twiddle, womanize
ROGET THESAURUS
fool around
Wit
VB
joke, jest, crack a joke, make a joke, jape, cut jokes, perpetrate a joke, pun, perpetrate a pun, make fun of, make merry with, kid, kid around,
fool around, set the table in a roar, retort, banter, ridentem dicere verum, joke at one's expense, take in jest, bomb, fall flat, go over like a lead balloon.
Folly
VB
to be an imbecile, have no brains, have no sense, trifle, drivel, radoter, dote, ramble, play the fool, play the monkey, monkey around,
fool around, take leave of one's senses (insanity), not see an inch beyond one's nose, stultify oneself, talk nonsense.