Related Clues:

• Prohibited act
• Don't do it
• It's strictly taboo
• Taboo thing
• ''___, Nanette''
• Restraining order
• Rich dessert, to a dieter
• Putting regular gas in a diesel engine, e.g.
• It's to be avoided
• It's taboo
• It's a bad thing
• Admonishing utterance
• Common Pig Latin word
• Something best avoided
• Deed to avoid