Plague Ships carried either the dead or people dying with an infectious disease so as not to infect other members of society. Said ships had ways of identifying themselves to passing ships so they knew not to make contact with the ship.
The plague ship leaving port has people who are dying on it.
plague ship: define #2
When you should stay home sick but instead go out. This usually results in the infection of everyone around you.
I feel like shit but I have a test today. I’m just going to plague ship the class.