Related Clues:

• 'Nuts!'
• Headliner
• 'Phooey!'
• 'Darn!'
• Untrustworthy types
• Rats
• Mild expletive
• 'Dagnabbit!'
• 'Fiddlesticks!'
• 'Shucks!'
• 'Fudge!'
• 'Shoot!'
• Lab runners
• Vast
• Devious ones