Related Clues:

• [You don't mean …!]
• Indicate shock
• Horror reaction
• [It can't be!]
• Sound of shock
• Express derision
• Fight for air
• Utter breathlessly
• Show disdain
• React in shock
• Laugh at mockingly
• Horror-film sound
• Circus reaction
• Make a sound of shock
• 'Oh my!,' for one