Perhaps a character in a movie or TV show who is trying to be tough and cool while also being a bit of an oddball. They might use this strange combination of words to show their non - conformist attitude.
It could be someone who is a big fan of 'Pulp Fiction' and is trying to create their own unique, tough - guy persona. They might say it to someone who they think is being too friendly or getting in their space, using the movie reference as part of their 'schtick'.
A person who is not very good at expressing themselves clearly but still wants to convey a sense of independence and a bit of a 'bad - ass' vibe. They mix up a common phrase 'I'm not your buddy, pal' with the name of a well - known movie in a rather clumsy way.