Related Clues:

• 'That stinks!'
• Flat sound
• Derisive shout
• Ghost's cry
• Sob syllable
• Example of scare tactics
• Sound of escaping air
• Call from the bleachers
• Kin of 58-Across
• Cat sound
• Discouraging word?
• It often follows a pun
• It may give you a start
• Alarming shout
• React to the villain's entrance