Related Clues:

• Horror reaction
• Swallow hard
• More than a sip
• [It can't be!]
• [Uh-oh]
• Sound of shock
• Fight for air
• Utter breathlessly
• Sizable swallow
• React in shock
• Horror-film sound
• Swallowing sound
• Circus reaction
• Make a sound of shock
• 'Oh my!,' for one