Related Clues:

• Emphatic denial
• Haughty refusal
• 'When pigs fly!'
• 'Forget it!'
• Not at all
• 'Well, I ___!'
• 'Over my dead body!'
• 'Fat chance!'
• When hell freezes over
• Defiant reply
• Emphatic no
• Playground retort
• 'When hell freezes over!'
• Schoolyard retort
• ''Absolutely not!''