Possible Clues:

• Beatnik's 'Gotcha'
• Beatnik's "Got it!"
• Beatnik's "Got it"
• Beatnik's 'Got it!'
• Comment from a person who digs
• ''Gotcha, man''
• Cool cat's "Understood"
• Beatnik's ''Got it''
• 'Gotcha,' in old lingo
• Cool cat's acknowledgment