Related Clues:

• 'Nuts!'
• Word of reproach
• Old-style interjection
• 'Yeah, right!'
• 'Phooey!'
• 'Darn!'
• 'Get outta here!'
• Cynic's retort
• See 50-Across
• 'Rats!'
• Mild expletive
• 'Oh, bother!'
• 'Dagnabbit!'
• 'Fiddlesticks!'
• 'Forget it!'