what do you know

1. What a surprise, as in What do you know, our suitcases are the first off the plane. [Early 1900s]

Example Sentences

It is the first time the Justice Department has approached Maxwell’s counsel for a meeting, according to the deputy attorney general, Todd Blanche, who wrote in a statement that he would take the meeting himself “to ask: What do you know?”

From Los Angeles Times

Deputy Attorney General Todd Blanche said prosecutors planned to ask Maxwell, "What do you know?"

From BBC

But Jelly Roll looked so amped to have her out there that you were inclined — hey, what do you know — to forgive.

From Los Angeles Times

You think, You f— a—hole, what do you know?

From Los Angeles Times

What do you know, if anything, about your campaign's effectiveness?

From Salon