Related Clues:

• 'Oh, yeah?'
• "Absolutely!"
• 'Most definitely!'
• 'For real?'
• "You bet!"
• "But of course!"
• 'For sure!'
• "No kidding!"
• “You don’t say!”
• ''Really?''
• 'Without a doubt'
• 'Really?!'
• 'Are you serious?'
• "Without a doubt"
• "No kidding?"