Related Clues:

• 'Yowzers!' in texts
• 'No way!,' in a text
• Talk softly and catch one's breath
• Air pressure produces sharp breath
• React to horror
• Texter's "Shocking!"
• Texter's 'Shocking!'
• Reaction upon opening a jewelry gift, perhaps
• 'Wow!,' in a text
• Reaction to some good dirt
• (The horror!)
• Pastor's excited blog letters?
• Not just inhale
• Texter's astonishment
• Sound surprised