What At

Pronounced 'Wadat'
A form of recognition; Commonly used as a greeting or exclaimation to show agreement or satisfaction.

Person one: Yo homie! :)
Person two: What at, brah?
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Person one: My brother, ja wanna hit up KFC? My treat, Its 'kay wid me! :)
Person two: Das' What At, Homie!! :D