Related Clues:

• "Ain't happenin'"
• "Impossible!"
• ''Forget it!''
• Face facts, slangily
• 'Quit dreaming'
• 'You've got to be kidding!'
• ''Whew!''
• ''Gimme a break!''
• "What?"
• "Hurry!"
• "Out of the question!"
• 'Impossible!'
• 'Let's get crackin'!'
• "Oh, be serious!"
• ''Shocking!''