Perhaps, but not running in racist circles, I wouldn't know.
(looks it up)
I can't find any reference to the term's being used to describe a racist, bigot or prejudiced individual. You may have invented your first American Slang Phrase. Congratulations.
I can see how one might come to the conclusion, since Southerners generally listened to Country music, and Southern Democrats were typically Segregationalists, slave owners, KKK members, or all.
EDITED: 5 Sep 2016 19:32 by FIXRMAN