There's a whole trend at the moment called 'raw dogging' (sigh) that means to do something like take a flight with no entertainment, books, phone turned off, etc. etc.
Dysphemism isn't an innovation, it's been around a long time. It simply means the opposite of a euphemism. Where a euphemism is a nicer way of saying something, a dysphemism is a worse or derogatory way of saying something. E.g. Referring to your car as a "banger"
To me it sounds like coded speech I need to put in some effort to understand. It’s a lot of effort to catch up with these, though I admit that sometimes they’re funny. But only sometimes, most times it feels forced and senseless.