Related Clues:

• Part of a Three Stooges shtick
• Type of hockey shot
• Reaction to freshness
• Challenge to a duel (using a glove)
• Painful indication of indignation
• Retaliation for a pinch, perhaps
• ''Fresh!'' follow-up
• Blow with a palm
• Face paste?
• [How dare you!]
• Mug whump?
• Response on the cheek to cheekiness, perhaps
• Payback for a lewd remark, perhaps
• High-five, for instance
• Backhand, e.g.