Related Clues:

• Sign of shock
• Huff and puff
• Sound of horror
• 'Whoa!'
• Struggle for air
• 'You can't be serious!'
• Sound at a fun house
• 'Gee whiz!'
• Recover from a sprint
• Pant
• Hand-over-mouth reaction
• Show astonishment
• Breathe with difficulty
• React in horror
• Reaction of shock