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.
IP Maxxx: Say What?
Wiggy T: *repeats himself*
Short for: "What did you say?"
Usually used when hearing something unpleasant.
Person 1: Yo, I'ma mess you up!!!
Person 2: Say what?
when you have heard something that completely displeases you, and you must ask..
anne talor: sucka you got served!
rickie lake: SAY WHAT??
alex trebek: you must answer in the form of a question!
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'.
You really need to watch the radiohead video for 'Just', thats a proper Saywhat?