The E2 Ethnic Slur List
Nigger, Tar Baby, Coon, Darkie, Jigabo, Porch Monkey, Blue Gum, pickaninny
Towel-Head, Sand Nigger, Camel Jockey
Chink (Chinese), Slant/Slant-eyed, Rice-eater, Slope, Yellow, Gook
Red Neck, White Bread, Casper, Whitey, Honkey, WASP, Poor White Trash, Cracker, Trailer Trash
Beaner, Spic, Wet-Back
Wop, Dago, Guinee, Greaseball*
Hebe, Hime, Kike, Jew**
Notes: I know this isn't close to a complete list so if anyone thinks of some more please /msg me and I'll add to it. I guess I also need to mention that I don't approve of the use of these words outside good racial humor. Also, I'm not sure how Caucasian ended up with the longest list.
Oh, and the whole category of "Asian" is horribly offensive. But, then again, the kind of person who uses these words couldn't tell the difference between a Chinese person and a Korean if their lives depended on it.
* I think just about anything with "grease" in it can be used when talking about Italians.
** Unlike with most other categories, "Jew" can easily be a racial slur by how it's said or what adjectives are added to it, such as "dirty Jew".