In Chinese, there’s a term called 渣男 meaning ‘jerk’ or ‘scumbag’, usually in a romantic context. ‘渣’ roughly translates to dust or sediment, so dusties are apparently a universal concept :P
https://uhlibraries.pressbooks.pub/chin3343sp23/chapter/zhanan/
P.S. I have also decided to start my own blog! It’s stil just in development and right now is just my previous forum posts, but if you’re interested feel free to check it out here: https://femcurrent2.wordpress.com