Related Clues:

• 'Hmm ...'
• "So that's how it is!"
• Nitpicker's cry
• Understanding comment
• ''Gotcha!''
• 'Yes, it's clear now'
• ''Hmm . . .''
• Phrase of acknowledgment
• 'Not if -- you first!'
• 'I've had enough!'
• 'Makes sense'
• 'No argument here'
• 'Told you!'
• Assurance to a jokester
• 'No need to elaborate'