They probably just ripped it off Google or some other website, they can do stuff the normal 6 year old cant figure out, like making memes, commenting, making a whole stream, and making alts and verifying them
Probably taken from a YouTube video which may explain why reverse image searching doesn't work
And I wanna point out that they can spell perfectly fine, they are only pretending to suck at spelling which is very suspicious if they aren't a troll alt