…“working class” sounds too dignified and authentic to you and you need to completely negate what you do not want to hear or even acknowledge the existence of, then you need something stronger. The most popular and dishonorable example of this is “Non-College Educated”. It is a designer meme- so effective at damning the opposition and making real debate and, even the facts of the matter, inoperative. Who needs reason and facts when you can just ignore them because they are “uneducated”?
Of course, any such means to dodge real confrontation with facts and debate only works if your need is particularly desperate- and Donald Trump makes them desperate.