noun
railfans who gather at the decommissioning of a train or line
Slang term among railfans for people who attend the final run or scrapping of a train or the closure of a railway line, often to take photos or pay respects.
引退する車両のラストランには、多くの葬式鉄が集まった。
Many 'funeral railfans' gathered for the last run of the retiring train.
Compound of 葬式 (funeral) and 鉄 (abbreviation of 鉄道ファン, railway fan). The term likens the decommissioning of a train or line to a funeral, and the railfans who attend to mourners.