The term UNCOUTH BOY can be broken down into two crossword solutions: YOB and UNCOUTH. YOB is a slang term for a young person who behaves in an anti-social manner, often involving vandalism or other disruptive behavior. UNCOUTH is an adjective meaning lacking in refinement or manners, or crude and socially unacceptable. Therefore, the term UNCOUTH BOY can be interpreted as a young person who is rude and lacks social etiquette.