What do you know?


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(well) what do you know

A phrase used to indicate one's surprise upon discovering something. Hey, what do you know—we have chocolate chips in the cabinet after all. Well, what do you know! It says here that my ancestors first came to this country in 1857!
See also: know, what

What do you know (for sure)?

Used as an informal, familiar greeting. Hello, Tom—what do you know for sure? A: "Hey, Mike. B: "Bill! Long time no see. What do you know?"
See also: know, what

What does (one) know?

A rhetorical question meant to indicate that one's opinion or claim isn't trustworthy, believable, or welcome. Sometimes used ironically or sarcastically. A: "You really shouldn't be eating so much red meat." B: "Ah, what do you know? Red meat helps make you strong!" A: "All the healthcare experts out there say babies ought to be breastfed exclusively." B: "Bah, what do they know? My siblings and I were all bottle fed, and we turned out just fine." So, what, you think I'm wrong about climate change because of some article you read on Facebook? I mean, I only have a PhD in climatology, what do I know?"
See also: does, what
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.

What do you know (about that)?

Inf. That is very interesting. Tom: I heard that Jim and Mary are getting married. Jane: Well! What do you know about that? What do you know? Bill finally sold his house!
See also: what

What do you know?

Inf. a typical inquiry on greeting someone. (A specific answer is not expected. Often pronounced "Wha-da-ya know?") Bob: Hey, Tom! What do you know? Tom: Look who's here! Hi, Bob! John: What do you know? Mary: Nothing. How are you? John: Okay.
See also: what
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs. © 2002 by The McGraw-Hill Companies, Inc.

what do you know (about that)?

used as an expression of surprise. informal, chiefly North American
See also: what
Farlex Partner Idioms Dictionary © Farlex 2017

(well) what do you ˈknow (about ˈthat)?

(informal) used to express surprise: Well, what do you know? Look who’s here!
See also: what
Farlex Partner Idioms Dictionary © Farlex 2017
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