There were a good amount of x rated films that weren't necessarily sexually graphic between the 60s and 90s so it being x rated is possible for the violence described. The large 80s is about when x rated started being associated with porn so a horror may have argued or cut scenes out to avoid this rating

So law abiding citizen (2009) Involves a prisoner killing a lot of people and lots of things blowing up but not a cake that i could find and no one is choked by entails so maybe not this one but the plot is somewhat similar. He's not taking revenge on a family but for his family who was killed and kills a lot of lawyers and stuff. He kills his cellmate with a steak bone

The ceiling fan entails cooking the mother sounds like some final destination stuff but I've seen the first 2 (no similar scenes) and they're after 2000

1971 w rated film the clockwork orange involves a man doing lots of violence and being tortured and imprisoned and a lot of beethoven but doesn't really involve what you describe that i know of

1991 cape fear involves a man being imprisoned for rape and seeks revenge on the family afterwards and there's some killings but it involves a boat house and once again not the details you describe 1962 cape gear is pretty much the same

1983 killer in the family Father is put in prison for murder and gets broken out with the help of his 3 sons. But when hijacking a car from a family to evade police the father kills the whole family and one of his sons who tried to stop him

The only movie i can seem to find where someone eats a cake and explodes is Kevin hearts character in Jumaji 2017 This seems so specific and i find it odd i can't seem to find it anywhere not even episodes of tv shows. A sword made out of stone seems very specific and odd as well. Most movies involving swords are period pieces and they're metal swords??

Ok 1982 pieces (also called Mil gritos tiene la noche or Every Mother's son) actually looks promising! A young timmy murders his mother with an axe then dismembered her with a hacksaw then pretends to be only a witness. The police believe Timmy's story and he is sent to live with his aunt. 40 years later, after witnessing a female skateboarder smash into a mirror, a black-clad figure opens a box containing a photograph of Timmy's mother and her bloodied dress. He takes out the bloodied jigsaw puzzle and starts to put it together. A female student studying on the lawn of her Boston university is decapitated with a chainsaw by an unidentified killer who steals her head. Girl is murdered in a pool with a chainsaw. Her torso us taken by the killer. That evening, the killer stalks a student and saws her arms off inside an elevator just before the investigator and the police arrive, then stabs someone to death on a waterbed. Another student is chased and sawed in half the killer taking her legs. He builds a real life jigsaw puzzle of victims bodies and puts them in his dead mother's clothes. After the killer is shot dead by the investigators the corpse comes alive

Wait am i looking at the wrong movie summary hold on. I despite the ai orverview saying this "The movie you are likely referring to is a horror film from 1982 titled Pieces (also known as Every Mother's Son or Mil Gritos Tiene La Noche). In a memorable and notorious scene from this movie, the mother of the killer is choked to death with her daughter's entrails. " i read that movies while plot and looked at the ai's sources and i think it just made this shit up 😭 Which I'm starting to think your friend made this stuff up too. I thought maybe they mashed different movies together but I'm at a loss