When somebody say's something you didnt catch, hear, understand or are disgusted with and would like them to repeat it so you can smack them the hell up!.

Or what one would say after watching the music video for Radiohead's 'Just'.
Say what?
You really need to watch the radiohead video for 'Just', thats a proper Saywhat?
by Mr Jaffa Cake March 5, 2009
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When a black male finds himself unable to hear a line of dialogue previously spoken by another black male.
Wiggy T: Yo yo yo, lets be trippin, y'all.
*flashes bling*
IP Maxxx: Say What?
Wiggy T: *repeats himself*
by The Entropy September 22, 2008
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to ask what
"say what" turd
by yooyu October 16, 2017
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when you are in shock, or despair and your eyes get real big then you say "say what??"

an akward moment
krystal: you know bob is cheating on you??
sammie:SAY WHAT??

joe: i like boys
kim: SAY WHAT??
by #teamfatal December 25, 2011
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Add something funny in the blank and then say __________SAYWHAT incredibly fast so that nobody knows what you said and then says "what"....you then laugh at them and they are unsure why.
Me: Idiot say what?
Idiot: What?
Me: HAHAHA
Idiot:?!?!
by Bret (aka BOSS) November 30, 2008
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