Related Clues:

• Reply from Joe Friday
• Reply from a gentleman
• Courteous refusal to a woman
• Polite reply to one's boss, maybe
• Hat-tipper's polite response
• Courteous assent
• Polite affirmative
• Polite reply from a gent
• Refusal with a contraction
• Courteous denial
• "Nuh-uh!"