Guess what!

guess what

A question that precedes a surprising announcement. It is a set phrase and is often but not always rhetorical. Guess what? Your mother is coming to visit this weekend after all. A: "Guess what?" B: "I have no idea—do you have news?"
See also: guess, what
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.

Guess what!

Inf. a way of starting a conversation; a way of forcing someone into a conversation. Alice: Guess what! Bob: I don't know. What? Alice: I'm going to Europe this summer. Bob: That's very nice. John: Guess what! Jane: What? John: Mary is going to have a baby. Jane: Oh, that's great!
See also: guess
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs. © 2002 by The McGraw-Hill Companies, Inc.

ˌguess ˈwhat

(informal) used to introduce something surprising or exciting that you want to tell somebody: Guess what, Angela’s getting married next month!
See also: guess, what
Farlex Partner Idioms Dictionary © Farlex 2017
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References in periodicals archive ?
INSTEAD of Guess Who, let's play Guess What! Here we go: What's now on DVD, but is still as miserable, woeful and unfunny as when it was on at the cinema?