Related Clues:

• Laboratory maze runners
• ''Peanuts'' exclamation
• "Dadgummit!"
• Experiment runners?
• Unwanted rodents
• 'Peanuts' expletive
• 'Darn it'
• 'Aw, shoot!'
• Cry often made while snapping the fingers
• Squeals (with "on")
• "Curses!" to Charlie Brown
• See 24
• First word of 'The 21 19'
• Snoopy's imprecation — vermin
• Pied Piper followers