Crossword clues for That's a riot! 4 lettersAnswerClueRIOTNoisy riot.RIOTThigh-slapperRIOTVivid display, as of colorRIOTGas... or an occasion to use gasRIOTClimactic event in "Natural Born Killers"RIOTReally funny personRIOTMob violenceRIOTDisturbance of the peaceRIOTViolently protestRIOTWith 21-Down, old rule that applied only to groups of 12 or more peopleRIOTLaugh-a-minute typeRIOTSomething caused by one who's slayingRIOTCrowd reaction that's good for a comedian, bad for pretty much anyone elseRIOTAlice, to Ralph, oftenRIOT1886 Haymarket Square eventRIOTOne leaving them rolling in the aislesRIOTLive wildlyRIOTCivil disturbanceRIOTUproar, noisy revelry.RIOTHilarious comedyRIOTHard-to-control situationRIOTRevolutionary developmentRIOTScreamRIOTSide-splitterRIOTBedlamRIOTFight the powerRIOTScene of bedlamRIOTHilarious sortRIOTRevel.RIOTOccasion to use a shieldRIOTReason for a lockdownRIOTNoisy feast.RIOTLaugh-a-minuteRIOTPublic disorderRIOTUtter chaosRIOTReal knee-slapperRIOTUprisingRIOTPost Stanley Cup melee, maybeRIOTCivic unrestRIOTHilarious jokeRIOTStand-up standoutRIOTRun amokRIOTDonnybrookRIOTYukfestRIOTPublic violenceRIOTWild profusionRIOTMob meleeRIOTRead the ___ act (get tough)RIOTGroup violenceRIOTStreet uproar