I'll just note that while Terry loved the word, he didn't ever really seem to use it as a racist slur, except by coincidence. He just directed it at anyone and anything he didn't like.
I grew up with a diverse group of friends, we used every slur under the sun to shit talk eachother and still do when being idiots. Those slurs have no meaning to us beyond the comedic value they provide in their vulgarity. I'd be shocked to discover any of us were racist, pretty strange to have not noticed after >20 years.