Possible Clues:

• "That's disappointing!"
• 'Gimme a break!'
• ''Gimme a break!''
• Phrase for the slightly miffed and disappointed
• "You gotta be kidding me!"
• 'Darn it'
• 'This is the worst!'
• 'Dang it!'
• "What a bummer!"
• 'Shoo-oot ...'