A term that originated in southern New Jersey that was used to describe tourists who packed lunches in shoe boxes to bring to the beach. Currently, the term is used to describe the flocks of northerners and Pennsylvanian's that travel to the South Jersey coastline during the summertime. They typically come in carpools of 5 or more, drive like snails, and crowd South Jersey boardwalks and beaches so much that locals can't enjoy themselves in their own hometowns.
Guy 1: "Why the hell is traffic on the Expressway moving so slow today?"
Guy 2: "Because of all of these fucking shoobies, they don't know how to drive."
Guy 1: "Yea, I bet they're all heading to the beach. We'll never be able to find a good spot to relax."
Guy 2: "Yea, all of the shoobies are gonna be crowding the sand with they're excessively sun block slathered bodies, and their Nike cross trainers."