Related Clues:

• 'Why not?!'
• Slangy OK
• 'You got it'
• Doubtless
• 'That's right'
• 'No prob'
• "Without a doubt!"
• "Why not?"
• "Absolutely!"
• "Uh-huh"
• Informal assent
• Absolutely certain
• "Of course!"
• Fully convinced
• "Fine with me"