Related Clues:

• Start of a carol title
• Quaint 'Listen!'
• "__! The Herald Angels Sing"
• 'Sup!'
• Call to Jude?
• 'What's up'
• Song word sung twice before "goodbye"
• "Hi" relative
• “What’s the idea?!”
• "Watch it, buddy!"
• Informal "Hello"
• ''Watch it, I'm standing here!''
• “Watch it!”
• Literary "Listen!"
• "Watch it, kid!"