Related Clues:

• With 78 Across, brusque greeting
• Hushed "Hey, you!"
• 'Whaddaya know!'
• ''Hey there!''
• Sibilant "Hey, you!"
• Furtive utterance
• Sound made with a cupped hand
• ____ you!
• "Hold it!"
• ''Wait one minute!''
• “Hey, over here!”
• "Hey you, c'mere!"
• Sound that will get your attention
• "Don't tell anyone, but . . ."
• "Hey, you there!"