Related Clues:
- Make snake sounds
- Boo mate
- Slow-leak sound
- Lip from crawler perhaps lets off steam
- Sound from an cat with an arched back
- Audible reproof
- [You smell like some other cat and I don't like you]
- Boo accompaniment
- Kettle emission
- Angry cat's sound
- Equal chance
- Sound from a snake
- Catty warning
- Boo relative
- A way to talk