Related Clues:

• 'Yecch!'
• Kettle sound
• Scornful sound
• 'Yuck!'
• Snake sound
• Heckle, in a way
• Greet the villain
• Sound of laughter
• 'That's disgusting!'
• Sound of disapproval
• Ophidian sound
• 'That's awful!'
• Terse 'review'
• Sow sound
• Vent sound