Continuity mistake: When Butch crashes and Marcellus shoots the woman, there's a second woman next to the door, and a white cup next to her. In the wide shot the cup is gone.
Continuity mistake: After Fabienne asks Butch about his hard day at the office, Butch turns away from the hotel room window and starts walking towards the bed. But in the next shot his head is facing the window once again. (01:15:55)
Chosen answer: It is a reference to a class of fast-paced, sensationalistic, and frequently exploitive stories published in cheap magazines from the 1920's through the 1950's. They were called 'pulp' because of the cheap quality of the paper they were printed on, as opposed to the 'slicks' which were more like full-color magazines of today.
Rooster of Doom