The Naked Lunch by William S. Burroughs
I found this book so weird and awkward to read. Some parts are so crude and even cruel that made my stomach churn.
Is also pretty hard to follow if you don't pay attention while reading. You get distracted just a second and you're lost.
The only part I did find interesting was the appendix written by Burroughs where he tells about every drug he used and its effects.
I guess it's one of those books you either love or hate. I only recommend it to people with a strong stomach too.