Related Clues:
- Texting in a theater, e.g
- Reason for an admonition
- Thing to avoid doing
- Something unacceptable (informal)
- Off-limits double negative
- Wearing red to a Chinese funeral, e.g
- Stealing someone's song, e.g
- Sade "The Sweetest ___"
- Taboo that hints at this puzzle's theme
- Ice cream and cake, when dieting
- Texting during the movie, e.g
- Eating pork, to an observant Jew or Muslim
- Unspeakable
- Something frowned upon
- An unacceptable thing