Related Clues:
- Sound of an air leak
- Snake noise
- Sound coming from this snake
- Reaction from an angry cat
- Audible disapproval in this snigger or sigh is strong
- Sound before going flat
- Expression of disapproval during this speech is stated twice
- Say hello to the villain hiding under Memphis sycamore
- Greeting sons in urgent whisper
- Let villainous play-actor have it, hiding under Memphis sycamore
- Leakage evidence
- Cobra sound
- Audible disapproval in church is sacrilegious
- "Boo!" alternative
- Busted tirade sound, perhaps