What does "how's that" mean?

Used to ask someone to repeat something

How's that

phrase

phrase ·Rare ·Advanced level

Phrase

1
Used to ask someone to repeat something
"“Oh Dave, I'm so sorry.” “How's that?” “I said I'm sorry.” “You'll have to speak up. I got more sirens going for me than London in the blitz.”"
2
Used to make an appeal to the umpire as to whether the batsman is out or not
3
Used other than figuratively or idiomatically: see how, is, that.

"“Oh Dave, I'm so sorry.” “How's that?” “I said I'm sorry.” “You'll have to speak up. I got more sirens going for me than London in the blitz.”"