totally nerdy way of saying wack(a white boy espression)usually used by white boys in the ghetto and they usually get shot by 20 black gangsters
WHITEY: sup my nigger, thats a totally wacktastic tattoo on your ass.
BLACK GANGSTER: shut the fuck up white trash....bang, bang, bang, bang, bang
WHITEY: what the fuck nigger you broke my glasses.
BLACK GANGSTER: BANG.