Related Clues:

• 'Uncle!'
• Admonisher's word
• Terse warning
• "You, there!"
• "Howdy!"
• "Listen!"
• 'I'd advise against it'
• Parent's warning
• It's forbidden
• Word of greeting
• "Knock it off!"
• Tripled, Yogi Bear's catchphrase
• "Yo!"
• "Watch it!"
• "Uncle!"