Related Clues:

• Off-limits word
• Gum chewing, for some
• Prohibited act
• Tough thing to kick
• Don't do it
• It's strictly taboo
• Religious costume
• Dominant tendency
• Usual practice
• Taboo thing
• -- -forming
• If one's broken, it's often good
• Professional duds
• ''___, Nanette''
• Rich dessert, to a dieter