Related Clues:

• Syllable of sarcasm
• 'Su-u-u-ure it is'
• Skeptic's laugh
• 'Probably not'
• "Probably not"
• 'Clueless' retort
• ''Yeah, that'll happen''
• 'Su-r-r-r-re'
• 'Oh, ri-i-ight'
• "Oh, ri-i-ight"
• I doubt it!
• Triumphant laugh
• Snorted retort
• 'That's highly doubtful!'
• "Dream on, clown!"