The main reason they had their little argument is that jules and vincent where wearing those dorky clothes…they walked in and Butch was like: what the fuck are they wearing? Vincent (who wasn’t comfortable in these clothes) sensed that Butch was looking at him like that and responded…
“I aint your friend” meaning: hey back off, you dont know me, dont judge me on my clothes…
“palooka” meaning: ok, I am wearing dorky clothes, but you re a boxer who is going down for money…
