A go-to phrase for youtube comment boards used to offer consolation to youtube video content (usually a song) that, while otherwise relatively sub-par, is nevertheless far more accomplished and/or enjoyable than Rebecca Black's "Friday."
Way much better is an adjective a person may use to describe something as superior. It may also be used to close off a debate with someone suggesting an alternative. Even though there is no factual reason explaing why something is way much better, its undersood by those discussing that by saying way much better there is no need to exlpain why or how or details.