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2 definitions by Tata51

 
1.
Means, Best, Awesome, Super, Sexy, man. Derived from early arabic.
hey, look at that guy. He is so Nish
by Tata51 October 16, 2010
 
2.
Retard who try to manipulate others to suck a wiener but only successfull when he meet another similar type of person like, ugly fat guy from midwest.
One guy: "look at that guy, he looks like a complete idiot"
Other Guy: "yeah, he is so Seibel"
by Tata51 October 16, 2010