How about that!
how about that
That is very interesting, impressive, exciting, surprising, or respectable. Said as an exclamation, rather than a question. A: "I heard Janet is running for a seat in the senate." B: "Wow, how about that!" How about that. Have you ever seen such a thing?
How about that!
Isn't that surprising! A: My husband and I just celebrated our sixtieth anniversary. B: How about that!
See also: how