C1[C]a noisy, violent, and uncontrolled public meeting: Inner-city riots erupted when a local man was shot by police.Social order and disorderTaking action against people in power›[S]old-fashionedinformala very funny or entertaining occasion or person: "How was the party?" "It was great - we had a riot."I met Mike's brother for the first time - he's a riot.General words for fun