Yeah, dustmen, or dusties, are stokers. So named because they were covered in coal dust. The nickname sticks to this day even though ships are Diesel or gas turbine powered. I was a stoker in the 60's/70's. We knew tomato au gratin as train smash but my favorite for breakfast was always sauteed kidneys, or, as we called them, piss strainers.
In this, and a couple other posts, the navy slang " a run ashore " has been mentioned but with no clarification. It is not going ashore to run around. It is the term used by sailors for going ashore to partake of alcoholic refreshments. Instead of saying, let's go ashore, go to the pub, and get stuck into booze, it was, let's go for a run ashore. If it was for shopping, usually in a duty free port, it became, let's go for a rabbit run. A rabbit was a present for the folks back home.

JG / FME.