Related Clues:

• 'You gotta be kidding!'
• Emphatic denial
• Slangy refusal
• 'That's impossible!'
• 'Forget it!'
• 'Nothing doing!'
• Cry of disbelief
• 'I don't believe it!'
• 'Fuhgeddaboudit!'
• 'I don't buy it'
• 'Fuggedaboutit!'
• Emphatic refusal
• ''Uh-uh''
• 'Impossible'
• "When pigs fly!"