I know I'm talking a jokey commentary point too seriously, but I would say "I can haz cheezburger" is a decent equivalent if we're going by generation: also makes little sense on the surface as the skibidi stuff.
One of those things where I get the sense that even the people proliferating it aren't entirely sure what it means or why they like it, but something about it is funny or interesting to them. But then, the same could be said about a lot of internet humor. Without the meta explanations of a website like KnowYourMeme, it can be hard to follow even if you belong to the generation that is spreading this stuff. I think there's something about the meme format/communication style that is supposed to be able to go beyond having to get really explicit about what it is you meant. The internet in general can be hard to explain to someone who doesn't spend a lot of time on it. I guess in a way, memes may be an answer to the fact that so much of the internet is so text-heavy and a lot gets left out when that's all you have. So memes, gifs, emotes, etc., try to get at the more nonverbal stuff.