Related Clues:

• 'Nuts!'
• 'Holy moly!'
• Artificial
• 'You gotta be kidding!'
• 'Horrors!'
• Emphatic denial
• 'Whoops!'
• 'Yeah, right!'
• 'Phooey!'
• Bizarre
• 'Yikes!'
• Fake
• 'That's impossible!'
• 'Get outta here!'
• 'It can't be!'