I've not heard it used in a classist sense in forever in my neck of the woods. I've felt like it's grown well beyond that over a generation ago.

Mostly it's used to call out the hypocrisy of middle class.or people with money who look down on poor people.

Kind of like, who's trailor trash? Everybody knoes you beat your dog, fool.

Who's trailor trash? You cheated on your husband with a sex guru and now people are talking about sex tapes. Your kids are gonna have to see that.

Who's trailor trash? You're out bragging about gunning down women. You're tirning on your own, you idiot.

Yeah, we see who's trailor trash. You want to look down on people but here you've got enough money to do well in life and you're doing the same shit you look down. If that makes the poor trailor trash, then you are too...you stupid blithering fucking $#+&?!...and we'll leave that there.

I well and truly despise that woman. She's an embarassment to Georgians. And sports shooters. And women, obviously. And blonds. And people who breathe. And amoebas, while we're at it because of that twit can sit on Congress amorbas should have voting rights.