Related Clues:

• "Not nice!!"
• Reprimanding syllable
• "Bad boy!"
• "Naughty!" syllable
• Half an admonishment
• "I'm disappointed!"
• [Cluck]
• “For shame!”
• "Not nice!"
• Click that is often doubled
• Clicking sound
• "I'm judging you"
• [How disappointing!]
• "Bad!" cluck
• Vowelless cluck