Related Clues:

• 'Honest to God!'
• Up-front
• ''Strange, but true!''
• "Cross my heart"
• 'For reals!'
• 'No lie!'
• "I kid you not!"
• Law-abiding
• "I'm telling you the truth!"
• "I'm not kidding!"
• Exclamation from Colonel Pickering
• 'I kid you not'
• "Honest to goodness!"
• Honourable, true
• Sincere, upright