Related Clues:

• 'No kidding!'
• 'I swear!'
• 'No kidding'
• ''No kidding!''
• "No kidding!"
• Phrase of affirmation
• 'For real!'
• 'Honest to goodness!'
• 'I'm not lying!'
• ''Strange, but true!''
• If cat sat here that's no lie (2'1, 1, 4)
• "Believe you me!"
• "I've got proof!"
• ''No doubt about it!''