Related Clues

• "Any fool knows that!"
• Simpleton's utterance
• "Boy, am I stupid!"
• Comment made while slapping the forehead
• "Like, I get it"
• Self-deprecating utterance
• "What a dope!"
• Forehead-slapper's cry
• "Boy, am I dumb!"
• "How obvious!"
• "Obviously!"
• "Isn't that obvious?!"
• "Well, yeah!"
• "Well, obviously!"
• "I am such a dope!"
• "Ya think?!"
• "Of course!"
• "Well, that's obvious!"
• 21-Across opposite
• "That's obvious!" in teen talk