Related Clues:

• It's verboten
• It's forbidden
• "No way!"
• Off-limits item
• Prohibited activity
• Talking on a cell phone during a movie, e.g.
• Forbidden subject
• Slangy rejection
• Taboo action
• Slangy no
• A doofus might do it
• With 36-Down, 1925 Broadway hit
• Taboo temptation
• Admonishment to Nanette
• Informal rejection