Related Clues:

• Thumbs up
• Copycat's words
• 'Indeed!'
• Word said before opening the eyes
• 'Yes!'
• 'You can say that again!'
• Mass assent
• Direct-mail response sticker
• Green light
• 'That's it!'
• 'Praise be!'
• Cry of success
• Aye-aye
• 'You betcha!'
• Sanction