Related Clues:

• 'I can't believe I missed that question!'
• "Obvi"
• Play-__: Fun Factory clay
• "Anyone can see that"
• Deceive husband? What an idiot I am!
• Oh no!
• "I'm so dumb!"
• Upsetting builder’s carrier, boy am I dumb
• "Obvi!"
• “How silly of me!”
• "I forgot the Duff Beer!"
• "Like I didn't know!"
• Homer's utterance
• "That was embarrassing!"
• "I made a silly mistake!"