Related Clues:

• ''I guess so''
• ''For sure!''
• Shout of satisfaction
• Confirmation word
• Marv Albert signature call
• "90125" band
• 'What is it?'
• 'I reckon so'
• Formal 25-Across
• Referendum option
• I do
• 'I'll do it!'
• Happy shout
• 'Abso-friggin-lutely!'
• Check-box word