Related Clues:

• Open-handed smack
• Strong rebuke
• High-five
• What a cheeky one's cheek might get
• Rebuke, in a way
• Action to a newborn baby's bottom
• Affix carelessly, with 'on'
• Reaction to an offensive line, perhaps
• Give a high-five to
• Insult, so to speak
• Made red-faced?
• Hit Stooge-style
• A blow between pals
• Hit with open hand
• A blow among pals