Related Clues:

• First note in sol-fa
• Homer's head-slapping cry
• Exclamation after mistake or minor accident
• Error report?
• Goof reaction
• 'That was dumb of me'
• Britney Spears exclamation
• "___! ... I Did It Again"
• Comment from Homer Simpson
• ''Didn't mean it!''
• 'Why did I do that?!'
• "My mistake!"
• Word accompanying a head-slap
• Homer's "Stupid me!"
• Club raised, knock end off -- clumsy me!