Related Clues:

• 'No kidding'
• 'Is that so!'
• Comment before 'I don't know'
• Major Hoople's outburst, in old comics
• 'That's amazing!'
• 'By ___!'
• 'Look here, old chap!'
• Opposite of 1-Down
• Breach
• Antiquated outburst
• Mary Higgins Clark's 'Before ___ Good-Bye'
• Quaint outburst
• 'Well, well!'
• 'Pardon me ...'
• Cry of shock