Related Clues:

• 'No kidding!'
• 'Right on, brother!'
• 'Right on!'
• 'No kidding'
• ''Tell me about it!''
• Informal assent
• "Gotcha"
• 'Amen to that!'
• 'Message received'
• 'Yeah, you're right'
• "No kidding!"
• 'Seriously!'
• 'That's not news!'
• "Right on!"
• 'You're telling me!'