Related Clues:

• (I can't believe you said that!)
• [That's shocking!]
• Type of mustard pot opened with one big blow
• Inhale quickly in surprise
• (Oh, my!)
• React to a twist ending
• First bit of stomach fits into opening? Let out pants
• Talk then quietly catch one's breath
• Breathe in sharply when embraced by doctor
• [I'm in shock!]
• (Holy cow!)
• Make a sound of fright
• Breathe in softly following ether?
• Feign shock
• Reaction to someone juggling chainsaws, perhaps