# what do you know

> English word · Phrase

## Definitions
1. What a surprise; guess what.
2. Used other than figuratively or idiomatically: see what, do, you, know.; especially, synonym of you don't know what you're talking about.

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-09-03.
Canonical page: https://plainspell.com/en/word/what-do-you-know