krewe noun1 •A private organization in New Orleans or elsewhere that exists to stage a Mardi Gras Ball, Mardi Gras Parade, or both.In 2004, as captain of the Rex krewe — one of the more progressive Mardi Gras organizations — Billy made a hesitant approach, too little and too late, trying to get to know Tootie Montana. — 2009 formskrewes