Related Clues:
- Denial for Nanette
- Verboten act
- Forbidden practice
- Bad thing to do
- Slurping at the dinner table, e.g.
- Echoing taboo
- Forbidden act
- Using metallic dishes in a microwave, e.g.
- Cell phone ring in a theater, e.g.
- It's frowned upon
- Smacking one's lips while eating, e.g.
- Forbidden action
- Elbows on the table, e.g.
- Roving eyes on an exam, e.g.
- Don't