Related Clues:

• Talking during a film, e.g.
• Perfume billed as 'The forbidden fragrance'
• Thou-shalt-not
• Major no-no
• Forbidden fruit
• Proscription
• Double negative?
• Naughty deed
• Banned: Var.
• No-no: Var.
• Forbidden thing
• Verboten
• Prohibition
• Jaywalking, e.g.
• Inadvisable action