Related Clues:

• Boring Bumble opener
• 'Yoohoo!'
• 'What do you think you're doing?!'
• Casual email opener
• Fellow Yankee’s call for attention
• 'Hands off, that's mine!'
• "Watch it, you!"
• "Watch it, I'm standing here!"
• Convo opener
• Upbeat greeting
• 'Sup!'
• ''You just hold on a minute!''
• Call to Jude?
• 'What's up'
• "That's uncalled for!"