Related Clues:

• Fib distributor
• 'You made that up!'
• 'Nuh-uh!'
• *No-good con man
• "That's not true!"
• ''Wrong!''
• Trust buster?
• "Pants on fire" sort
• One with a forked tongue, so to speak
• Source of unbelievable story in bar taken the wrong way
• "Not true!"
• Diamonds missed by detection system, one giving false response
• Fabulous speaker?
• ''I beg to differ''
• ''Be bad, but at least don't be a __'': Tolstoy