mk8dlux
While it looks like gibberish, it can be broken down into keywords that likely targeted high-traffic search trends during the 2021 gaming and hardware boom: : Mario Kart 8 Deluxe. nswtch : Nintendo Switch.
“zipper top car”
The garbled term “zipertopar 2021” likely refers to or “top accessories for kart racing” . By 2021, a cottage industry of third-party accessories had emerged specifically for Mario Kart 8 Deluxe. Here are the best-reviewed products from that year.
This was the zipertopar effect. It was a debug tool the developers had left in, a "super zipper" that broke the game's logic.