| Noun | 1. | dude - a man who is much concerned with his dress and appearancecoxcomb, cockscomb - a conceited dandy who is overly impressed by his own accomplishments macaroni - a British dandy in the 18th century who affected Continental mannerisms; "Yankee Doodle stuck a feather in his cap and called it macaroni" adult male, man - an adult male person (as opposed to a woman); "there were two women and six men on the bus" | |