There’s an entire genre from the 80s called Italo Disco that contains unintelligible English lyrics. It’s very charming in a way (and is excellent music to listen to while programming).
Unintelligible lyrics aren't a necessary part of Italo, though; it's just that they were sometimes written by people who didn't speak English terribly well, and cared more about making something people could dance to.
Nonetheless, i have upvoted your comment, as Italo is the third best genre of music, and deserves to be more widely appreciated.
Dub and dubstep are different genres. They're the same concept applied to to different genres of music. It technically makes dubstep a subgenre of Dub, but the music they're based off is different enough that they don't usually sound alike.