Related Clues:

• Lottery letters
• When this sound stops, you'll be left flat
• Serpentine sound
• Sibilant sound
• Sound after a pinprick
• Lottery org.
• Snake's sound
• Sound of a dud
• Serpent sound
• Leaky radiator sound
• 'That's nonsense!'
• Sound at a fish fry
• Sound of a leak
• Old lottery org.
• It might precede 'pfft'