Related Clues:

• Word of assent
• Cry of delight
• 'Uh-huh'
• 'You bet!'
• 'I knew it!'
• Exclamation of surprise
• Aah's partner
• It's positive
• Sound at the circus
• 'That feels good!'
• Up, as a vote
• 'Cool!'
• 'Holy cow!'
• 'Why not?'
• Go-ahead