Related Clues:

• Defiant cry
• Impossibly, informally
• ''When pigs fly!''
• When pigs whistle
• 'Not in a million years!'
• Not in a million years
• Emphatic negative
• Not even once
• 'Ain't gonna happen'
• ''As if!''
• Unequivocal refusal
• ''In your dreams!''
• Word before and after say
• "Forget it!"
• ''No way!''