Is like nigga... but to white people.
Is used as a frienly term or a racist term if is used offensive(just like "nigga").
Is used by people that like black people
(not a bad thing if is not acted as an offensive way) or from hispanic people that think if they say "nigga" they will get beat up.
Hey ma whigga whadupp!!
Whigga Whigga Whigga Whigga