Come again?

come again?

Could you please repeat what you just said? The phrase can be used in a straightforward way, or by the speaker to indicate that they think what has just been said is unreasonable, ridiculous, or absurd in some way. Sorry, Mike, come again? The connection is bad and I couldn't hear you. A: "I just quit my job to join the circus as a netless trapeze artist!" B: "Come again?"
See also: come

Come again?

  (informal)
something that you say when you want someone to repeat what they have just said because you did not hear or understand it 'What's amazing is that Pauline's half sister's son is the father of her cousin's child.' 'Come again?'
See also: come