"Caucasian that takes great pride in draping him/herself with shiny FUBU, Johnny Blaze, Champion, Wu-Tang and whatever else fake shit they can find at the markets, then pretend they are in the ghetto and call their mates "Dawg" and "*****" or "Word Up Niggah". Prerequisite of wearing an oversized jacket on a stinking hot day."
Although its derived from a racist word it isn't exactly racist. I'm pretty sure a wigga knows he is a wigga.