you know what

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you know what

1. (idiomatic) Used, often as a question, to get someone's attention before announcing something.

   Synonym: you know something

   • 2001 May 10, "Blake's Attorney on Bakley's Murder", CNN Live (transcript)

     Well, you know what, he's got a cloud over him. You have to live with who you are and make your peace with your maker about what you really are.

   • 2009 March 23, Alex Hawgood, “The Three-Ring Circus”, in New York Times‎:

     Well, I guess I’ve got to say, I love the Madonna one that we did — the Drowned world tour. Actually, you know what? The first Blonde Ambition tour I loved. The “Vogue” thing — that was a memorable moment in my lifetime.

• guess what
• you know
• you-know-what
• you know what I mean
• if you know what I mean
• you know what they say