Related Clues:

• 'Wow!'
• Unsettling comment from a pilot
• 'My word!'
• Minced oath
• Bad thing to hear at a checkup
• 'By gar!'
• 'Holy Toledo!'
• 'Look out...'
• Apprehension expression
• 'My stars!'
• Antiquated euphemism
• 'Oh dear!'
• Cry of mock horror
• Catch phrase?
• Word of mock horror