Related Clues:

• Make breathless
• Cow, perhaps
• "I'm in __": "Wow!"
• Move a whole lot
• Reverential regard
• Open-mouthed state
• Totally floor
• Thunderstruck feeling
• Stunned wonder
• Reverent astonishment
• Stupefied admiration
• Reverent fear
• Cause wonder
• Floor of a jungle
• Extreme characters in title not beginning to shock