חפשו מילה כלשהי, כמו fleek:
 
1.
Can be used in the place of "fa sho," as in to agree with another, or to give props to somebody for some tight shit
You heard I got that job at Nike?
That's wassup
מאת Cheezie 14 באוקטובר, 2004
 
2.
An term of agreement.
Zan: Yo, I got a 95% in my Event Management Class!
Orande: Oh Word? I got a 95% too!
Both: THAT'S WASSUP!
מאת Zans 11 במאי, 2006
 
3.
Among the same lines as saying, 'okay', 'for sure', 'yeah' or 'awready'. Mostly used down in Texas.

friend #1: "what's going down tonight?..."
friend #2: "we gonna party like rockstars!!"
friend #1: "yo, thats was sup!!"

Joe: "let's get blazed?!?"
Mike: "uhh, thats was up!!"
מאת eddy cee 14 במרץ, 2008
 
4.
It means that you agree with something or it also means yes. It also means to ask for head.
Hey Samantha! That's Wassup
מאת Orlando Castillo 7 בינואר, 2004