Related Clues:

• Soft "Hey!"
• Sound before 'Your fly's open'
• Slangy greeting
• Greeting from Gleason's bartender
• 'Over here'
• Start of a whispered comment, perhaps
• Subtle 'yo!'
• ''You there!''
• 'Hey . . . over here!'
• Familiar greeting
• Sibilant signal
• Subtle alert
• Relative of ''ahem''
• Soft "Yo! Over here!"
• Furtive ''Yo!''