Related Clues:

• "I am such a moron!"
• Cry from 47-Across
• Homer Simpson's outburst
• "Boy, am I dumb!"
• Homeric expression
• Homer Simpson's shout
• Cartoon exclamation
• 'Well, how obvious!'
• 'That much was obvious'
• Homer Simpson's catchword
• If Homer stubs his toe, he goes ''___!''
• 'Well, yeah!'
• "Of course I knew that!"
• 'What an idiot I am!'
• 'Everybody knows that!'