Maybe this is too generic, but 70/80's horror and exploitation is a whole lot of fun! Some are turds of course, but compared to the shit people shovel in their heads now they are like wild horse turds that go unique and interesting places.

If you're looking to have your face totally melted, there's some insane exploitation and horror that came out of Hong Kong in the 80's and 90's. Shaw Brother's examples like Seeding of a Ghost and Boxer's Omen, are chinese black magic movies where people rape ghosts and vomit up live worms and stuff like that!! The 90's had a Category III craze in independent film, most of these are straight garbage but they really earn the highest age classification! Graphic rape, cannibalism, child murder, etc. There are quite a few gems that stick out from the hundreds of movies from this era, check out The Untold Story for an amazing serial killer performance by Anthony Wong, check out Ebola Syndrome for the exact same thing but also with spreading ebola, Dr. Lamb, Run and Kill, Naked Killer, etc.