Related Clues:

• 'That so?'
• 'I'm an idiot!'
• Dolt's response
• "Who ___?" (Response to a knock)
• "Like, obviously!"
• "Like, no-brainer!"
• Doubter's question
• 'I am so stupid!'
• 'I would have thought it was obvious'
• '___ any wonder?'
• 'That is so obvious!'
• "You really think that's true?"
• '-- bigger than a breadbox?'
• 'Whose Line ___ Anyway?'
• Sound often heard after a slap