This is the best one, cause it references Alex! which iirc, was a quote taken directly from a Goyfire.

1. Amerikwa
30 up, 6 down

A derogatory way of referring to what the United States has become socially and politically; namely a 'melting pot' of blacks, browns and jews.

Alex Linder "I say 'Amerikwa' because it has the ring of Kwanzaa to it and the Kwa-ha-ha of the jungle.
tags 'kwa kwa the kwa kikestan tyranny banana republic
by Agis earth Apr 25, 2006 email it

http://www.urbandictionary.com/define.php?term=amerikwa

Making up silly slang is a Heebonics/Ebonics trait. We don't this.

1. mulignan - a racially offensive term for a black person (from Italian melanzana, which is an eggplant.)NOTE: there are hundreds of phonetic spellings out there; however, this is the ONLY correct Italian spelling of this word.

He was accused of being a racist when he called the black man a mulignan at the bus stop.

4. mulignan - This is the term for "African Americans" used by most Italian-American males, myself included. I grew up hearing my father and grandfather using it all of the time, so it's only natural.

Newark used to be a nice place, but now there are too many mulignans.

5. mulignan - A racially offensive term for a black person.( see also Mooley ) Deriving from the italian word for "eggplant". Many believe the comes from slave masters in italy calling them eggplants, because when the black folk were working in the fields their heads would only be showing thru the crops.

"look at dis mulignan ova here wit his grape soda and fried chicken."
"look at dat cooley on dat mooley"

Urban Dictionary

Here are a few race/WN relevant submissions that I made in the past:

Wapanese

USAbles

Paper TV

At one time I was of the opinion that this site could be a useful vehicle for memetic warfare. In the recent past, the site had limited to no moderation. Nowadays, however, any newly-submitted definition must clear a Stalin-esque "moderation queue." If you explicitly mention race or even attempt to do so in a stealthy way, your definition or neologism won't stand much chance of being published.

Well, what do you know. Here's loxism.

Urban Dictionary

You are just putting Italians on the same level as nigs. There is nothing "urban" or "ebonics" about this word.
Black slaves working the fields in Italy? I don't think so.

I like this one myself.

coon

The coon is a lazy, easily frigtened, chronically idle, inarticulate, buffoon. Often working as a servant he is unhappy with his status but is too simple or lazy to improve his lowly position. He is a gaudly dressed "Dandy" who "Puts on airs". Coons do not know their place and think they are as smart as White people; however, their frequent malapropisms and distorted logic suggested that any attempt to compete intellectually with Whites is pathetic. His use of bastardized English confirms the commonly held beliefs that Blacks are inherently less intelligent than whites. The coon's goal in life is leisure, and his leisure time is spent strutting, styling, fighting, avoiding real work, eating watermelons, and making a fool of himself. If he is married, his wife dominates him. If he is single, he seeks to please the flesh without entanglements.

"I ain't askin you is you ain't. I is askin you is you is." Said the coon