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1.
Hello, Sup?
Dgen: Hello, Sup?
PSYCHOTHUG: WAT APP
by arseFACE April 26, 2003
 
2.
wat app - a form of greeting used by those who are of a superior nature to the common "Hello, Sup" people.
Cool Dude: WAT APP
Idiot Child: Hello, Sup?
by Alty September 04, 2003
 
3.
n00b form of saying Hello, sup?
pro: Hello, sup?
n00b: WAT APP
by Firestorm July 08, 2003
 
4.
n00b form of asking which program in a certain situation
Pro: Which program did you use to make this?
n00b: WAT APP
by Whisper September 03, 2003