Related Clues:

• "Oh yeah?"
• 'Can that be true?'
• 'Honest to goodness!'
• Answer to ''That so?''
• '-- an earthquake, or ...'
• ''Oh, really?''
• 'Who'd a thunk it?!'
• Unbribable
• ''That's the truth!''
• Suffix denoting inflammation
• ''Oh, yeah?''
• 'No kidding?'
• 'No fooling!'
• 'That's the truth!'
• Sinus ending