Related Clues:

• Smacking one's lips while eating, e.g.
• Prohibition: Var.
• Forbidden action
• Like a divorce, in some places
• Elbows on the table, e.g.
• Roving eyes on an exam, e.g.
• Don't
• Not permitted
• "___ Nanette"
• Morally wrong
• Social blunder for Nanette?
• Forbidden activity
• Off-limits
• Something to avoid
• It's off-limits