Related Clues:

• 'I could've sworn ...'
• At-a-loss utterance
• 'Say that again?'
• 'You wanna run that by me again?'
• 'What gives?'
• Whatever way you look at it, it comes as a surprise to you in hotels
• Expression of confusion
• Indication that you don't get it
• Quiet without silence, initially — what?
• "That's a surprise"
• 'Beg pardon?'
• 'Wow, I didn't expect that!'
• Answer that probably won't earn you any points on a game show unless the prompt is 'This one-syllable sound usually indicates someone doesn't know what you're talking about'
• ''That's news to me''
• 'Could you put that in layman's terms?'