Possible Clues:

• When said three times, 'Of course, obviously!'
• Surely energy's needed in revolutionary dance
• Yes, it's 50:50 Kaye and Leah
• Colloquial affirmative
• ''You tell 'em!''
• 'Indeed!'
• 'Why not'
• 'Totally!'
• 'What she said'
• 'Agreed'