Related Clues:

• 'You gotta be kidding!'
• 'Horrors!'
• Emphatic denial
• 'Whoops!'
• 'Yeah, right!'
• 'Phooey!'
• 'Yikes!'
• 'Come again?'
• 'That's impossible!'
• 'Eh?'
• 'It can't be!'
• 'Huh?'
• 'Fiddlesticks!'
• 'Forget it!'
• Cry of despair