In my opinion, the term "White Trash", along with "Redneck", which both used to carry strong negative class-based connotations, are used among poor and rural whites in the same way "nigger" may be used among blacks, with a strange sense of proud self-identification. From Jeff Foxworthy, whose "(if your wife doesn't have to change her last name when you get married) you might be a redneck" comedy bit is extremely popular among working class southern whites, to Steve Earle's line about Vietnam "I joined the army on my birthday/ They draft the white trash first 'round here anyway", these terms have lost the impact and stigma in this culture that they may still carry to outside observers.