wigga
A white boy who lives well off, tries to act mainstream afrocentric, doesnt know how to struggle or what the struggle is, doesnt know, depression, poverty, grievance, or their inner problems that most inner city kids and some other teens have to go through. 

They have and they think there cooler than everybody and they mask and dont act themselves. Wiggers have  no work ethic and beg there parents for everything. 

They have well off family, a gangsta wouldnt, dad usually goes to work in a suit everyday and mom probably works at the hospital or something. 

A gangstas mom wouldnt do anything and do what ever she can to put food on the table without working or yet she would slang crack, the dad would probably be gone, in jail, be a major alchoholic, or slam heroin or just be a loser, or beat the kids or just abandon them. 

Just becuase you dress like a hip-hop artist when you are white doesnt make you a "wigga" some people actually do that because they like the style and it fits them. Some people who are white and do that doesnt make them a wigga because they might know what the struggle is like. Then thats fine. If you act "black" and dont come from pain and you are white and dress black and ACT like black and beg your parents for everything, then i feel sorry for you.

If you know the struggle and you dress "black" but you dont act "black" then I think your fine
Those wigga(s) on the movie grind, Wiggaswho live in the suburbs of chicago, missoula, rich parts new jersey, detroit, dallas, anchorage, etc and act like what they see on tv and think its real, theres more to life