Related Clues:

• "Yeah, right!"
• Some tennis strokes
• 'No prob'
• "Without a doubt!"
• 'Ha!'
• "Why not?"
• 'Fat chance'
• "Absolutely!"
• Absolutely certain
• "Of course!"
• Fully convinced
• "A likely story!"
• "Fine with me"
• 'Whatever'
• Skeptical exclamation