Related Clues:

• 'You gotta be kidding!'
• Emphatic denial
• 'Gotcha!'
• 'Yeah, right!'
• Haughty refusal
• 'I knew it!'
• 'That's impossible!'
• 'When pigs fly!'
• 'That'll show you!'
• 'Forget it!'
• 'I doubt that!'
• 'Yeah, sure!'
• 'So there!'
• Not at all
• 'Yeah, right'