I get hella stoned and watch Foodfight! at least once a year. It’s my “favorite” movie.
Everything about it, from the implied beastiality between Charlie Sheen and Hillary Duff, to the weird gay bat, to the shitweasel 
is a masterclass in what not to do in a movie. It transcends badness and becomes something sublime. The entire plot is about how store brands/generics are Nazis, and one of the Nazis absolutely chews the scenery in a way that makes Brian Blessed look reserved.
Super Mario Bros. 1993. It is by far the movie that puts the biggest “fun” smile on my face, especially when watching it stoned. It’s so goofy in the best way and comes across as funny in a way that makes me have fun with it every time.
I mentioned Rifftrax in another comment, but the Rifftrax version of this and Street Fighter are two of my favorite things ever.
the amount of slime in that movie makes it impossible for me to watch stoned. Like, if I got that slimey, while stoned, I would be freaking the fuck out. Great movie though. I still love John Luigi-zamo