Related Clues:

• "That Thing ---"
• ''No kidding?''
• What-now filler
• ''Oh really?''
• ''For sure!''
• "For real?"
• Tough guy's rhetorical question
• '___ true?'
• "... or ___ just me?"
• Unquestionably
• 'For sure'
• Janet Jackson's 'Say __'
• "Says who?"
• "--- any wonder ...?"
• "Who ___?"