Related Clues:

• Emphatic no
• 'When hell freezes over!'
• Deride
• ''Absolutely not!''
• ''You stink!''
• Not just 'no!'
• Ghostly greeting
• It'll give you a start
• Word from 22-Down?
• Derisive cry
• Shock giver
• Scary sound
• Audience put-down
• Show dissatisfaction
• Halloween sound