Noun
tramp steamer (plural tramp steamers)
(nautical) a commercial steamship that has no regular schedule or published ports of call.
I don't have any great first job tales: I've never worked on a tramp steamer or in a coal mine or anything like that. I think the inspiration for my writing came largely from my father and the joy that life in books represented to me. Mary Gordon
A typical Q-ship might resemble a tramp steamer sailing alone in an area where a U-boat was reported to be operating. Source: Internet
Bogart resisted Huston's insistence on using real leeches in a key scene where Charlie has to drag his tramp steamer through an infested marsh, until reasonable fakes were employed. Source: Internet
Following completion of the interior scenes, Schoedsack returned to San Pedro and spent a day on a tramp steamer to film the scene of Driscoll punching Ann, and various atmospheric harbor scenes. Source: Internet