>>30594562someone linked the specific tweet being referenced, but it is a zoomer meme at the moment to respond with a long list of things, linked with +'s, usually to discount people who are being fags. You may tell someone to "cope + seethe + dilate + kys" or something. It's a way of balancing your dismissive response to be as low-effort as possible (not explaining any of the components) while also being as comprehensively insulting as possible (including as many component insults as possible). It's a strategy for maximizing efficiency of insult in as few characters as possible, due to its likely origins on twitter, where characters are limited.
You could be more dismissive and low-effort by just calling someone a fag, but the tradeoff is you don't have as much "insult density" in such a response.
You could write out an eloquent blogpost about how shit the person is, but then it become high-effort and you open yourself up to being called a fag for caring so much.
The tl;dr is that it's the equivalent of a blogpost, but intentionally low-effort to avoid the appearance of giving a fuck. Whether it successfully avoids the appearance of giving a fuck or not is down to context and the viewer.