come again?
used to ask someone to repeat what they have just said

[TahlilGaran] Dictionary of Contemporary English ▲

come again
what did you say.
Come again? I didn't hear that.

[TahlilGaran] English Idioms Dictionary ▲

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?'

[TahlilGaran] English Idioms Dictionary ▲

Come again.
Please repeat or say that again.
"Come again. I did not hear you the first time."

[TahlilGaran] English Idioms Dictionary ▲

come again
v., informal Please repeat; please say that again.
■ Usually used as a command.
"Harry has just come into a fortune," my wife said. "Come again? " I asked her, not believing it.
"Come again," said the hard-of-hearing man.

[TahlilGaran] English Idioms Dictionary ▲