Related Clues:

• Forehead slapper's word
• Type of "moment" of inspiration
• "Yes!"
• Exclamation after an explanation
• "An idea!"
• 'O-o-oh!'
• "Oh, okay"
• ''Uh-huh''
• Acknowledging expression
• "I solved it!"
• 'Ah so!'
• "That's the way it's gonna be then, eh?"
• Shrink's statement
• Dawning response
• Cry with eyes lit up