Related Clues:

• Old-time oath
• Charlie Brown exclamation
• 'That's incredible!'
• 'No kidding'
• 'Is that so!'
• Innocuous epithet
• Comment before 'I don't know'
• Plague carriers
• 'That's amazing!'
• 'Gosh darn!'
• Opposite of 1-Down
• Vermin
• Charlie Brown oath
• 'I'm impressed!'
• Word before 'I don't know'