Related Clues:

• Gut reaction?
• Sock-in-the-gut sound
• Sound of a sock
• Punch response
• Punch in the stomach response
• Punch-in-the-gut utterance
• Breath-losing sound
• Sound of distress
• Comics sound effect
• 'Ouch!'
• 'What now?!'
• "Holy cow!"
• ''That hurts!''
• 'That's gotta hurt!'
• [This is heavy!]