Related Clues:

• Tire leak sound
• Starting word
• Sound issued with an arched back, perhaps
• 'That's not fair!'
• Ghost word
• Let off a little steam
• Cheer's opposite
• Greet the visitors?
• Ghost's call
• "Get off the stage!"
• Reaction dreaded by a performer
• "Bad call, ref!"
• Sound of crowd disapproval
• "You stink!"
• Scarer's shout