What does part deux mean?

part deux meaning in Urban Dictionary

A superfacial, unneeded, or extremely bad sequel to a vintage movie. Usually the second film inside series though not at all times. Adding the term to a movies subject is comparable to including the "electric boogaloo." Produced by the intentionally superfacial sequel, "Hot Shots! Component Deux." Examples include: "The Exorcist II," "Caddyshack 2," "Batman and Robin," "The Godfather Part III," etc.