- HISSAT
- Boo
- Greet, as a villain
- Greet the villain, say
- Express disapproval of, as a bad performance
- Boo, and then some
- Show contempt for, as a villain
- Warn, in a way
- Menace, feline-style
- Warn, feline-style
- Show derision to
- Voice disapproval of
- Threaten, snake-style
- Show disdain to
- Deride
- Protest, perhaps
- Condemn from the peanut gallery
- Express disapproval of
- Treat as a villain
- Greet cattily
- Show disdain for, in a way
- Threaten, as a cat might
- Show contempt toward, cattily?
- Threaten, feline-style
- Condemn, as a stage villain
- Greet like a spiteful cat