Paris and Jess are butting heads over the Beat movement. Paris claims that guys (and thereby Jess) worship Kerouac and Bukowski.
Like Hemingway, Bukowski was a brutish drunk that could spill out some seriously on point human truths.
No particular Bukowski novels were mentioned, but I'd say go for Ham on Rye, this passage from it really reminds me of Jess “I didn't like anybody in that school. I think they knew that. I think that's why they disliked me. I didn't like the way they walked or looked or talked, but I didn't like my mother or father either. I still had the feeling of being surrounded by white empty space. There was always a slight nausea in my stomach.”