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what do you know

phr. (context colloquial set phrase rhetorical question often sarcastic English) What a surprise; guess what?

Wikipedia
What do you know

What do you know may refer to:

  • Michael Feldman's Whad'Ya Know?, a Wisconsin Public Radio quiz show
  • What Do You Know?, a BBC Radio quiz show
  • What Do You Know, Deutschland?, an album by the German band KMFDM

Usage examples of "what do you know".

Tapestries and drapes and chair-covers all satin and brocade and stuff- and it's falling to pieces I Big silver tea urns and what do you know - all yellow and tarnished for want of cleaning.