Related Clues:

• ''Don't hold your breath!''
• On the 31st of February
• ''Not a chance!''
• 'Not on your life!'
• 'When hell freezes over'
• Under no conditions
• Rebel yell
• Decisive refusal
• "The Twelfth of __"
• Not a chance
• 'Keep dreaming!'
• ''Not on your life!''
• 'In a pig's eye!'
• 'Don't even bother!'
• Defiant response