Related Clues:

• "Sure it is ..."
• A riddle lacking conclusion -- I doubt that!
• 'Wow, sounds like it'
• "Wow, no doubt"
• 'Not surprising!'
• 'Like that'd ever happen'
• Scoffing response
• I very much doubt it
• "Ha, right"
• I think not!
• "Su-u-ure you do!"
• "Suuuuure"
• “Don’t you wish!”
• 'Oh yeah, that sounds *super* plausible'
• “No doubt!”