I legitimately think meme culture brain rot is actually dumber though. Think about what kind of shit you quoted as a kid and young adult. Beavis and Butthead, Office Space, Cheech and Chong, Pulp Fiction... A lot of it isn't exactly high art but it at least has the standard elements of conflict in fiction, or expresses some vague social commentary, or requires a functional attention span to comprehend a plot, or even synthesize themes.
Skibidi toilet has none of that. It has no point to make. It has no world to build. It's literally just random shapes, colors and noises on a screen. The "episodes" are only a few minutes long and even within that constraint there is nothing resembling continuity at any scale.