Related Clues:
- Power source of a sort
- Sibilant sound of disapproval
- S-sound of disapproval
- Make sibilant sound like snake
- Gas from boiliing water
- Boiling water vapour
- Vapour of boiling water
- Vapour from boiling water
- It's water mist, mates
- Make sibilant sound of disapproval
- Make sibilant sound of disapproval as at villain
- Sibilant sound as of snake
- Gas from boiling water
- Water at boiling temperature diffused in the atmosphere
- Make sibilant sound