Slang: Disparaging and Offensive . a poor white person living in some rural parts of the southeastern U.S.
Racist term for a white person
a usually disparaging : a poor usually Southern white
a. Used as a disparaging term for a poor white person of the rural, especially southeast United States.
b. Used as a disparaging term for a white person.
You are right. When I looked it up I found no reference to race at all.