Originating from Prince Edward County, Ontario. "Pulp" is essentiallyanother word for ragebait, dating back to the 1990s, still used today by many, the difference is, you don't think. you just do it.
Guy 1: up yours, queer
Guy 2: hey fuck you man!
Guy 1: Chill out I'm just pulping
Guy 2: oh okay
Guy 3: good pulp
A presumably platonic outing with a friend's spouse or significant other, usually, though not always, where a certain level of unstated attraction is involved.