The mechanical door on a boxcar, hopper, or passenger coach. Freight car doors are typically massive steel sliders or plug doors that seal flush with the interior wall to protect cargo from the weather. They require specialized latching mechanisms and can be dangerously heavy if derailed from their tracks.
Heard on the job
Grab a come-along, this plug car door is bound up and won't slide shut.
Also heard as
- plug door
- sliding door