To be the best; to be the most dominant or in control; to be the most favoured or supported by the public. (Used originally in relation to football clubs or local gangs in graffiti writing.) Primarily heard in UK. Someone had come with a can of black spray paint and crossed out the big "Leeds Rules OK" that was painted on the side of the school. But in this part of the country, the conservatives rule OK with almost no opposition.
— rule(s), OK?used to express your enthusiasm for a particular person or thing. informal, humorous
2000 Elle Here at ELLE we've always been big fans of Kerrigan's urban babewear, and this season…she really rocked. Daryl K rules, OK?
See also: OK