Related Clues:
- They might follow bad calls
- Mean miens
- Reactions to bad jokes
- Disapproving fans' chorus
- Ghost's greetings
- Some catcalls from the stands
- Greets the bad guy
- Crowd noise?
- Sounds from a snake pit
- Impatient sounds
- Ghostly greetings
- Shouts of disapproval
- Sibilant sounds as in disapproval
- Furrows forehead in bad humour
- Wrinkles forehead in disapproval