English version

train spotter in Outdoor topic

From Longman Dictionary of Contemporary Englishtrain spotterˈtrain ˌspotter noun [countable] British English  1 TTTDLOsomeone who collects the numbers of railway engines for fun2 BORINGsomeone who you think is boring and only interested in unimportant detailstrainspotting noun [uncountable]
Examples from the Corpus
train spotterHere is the story of one of them, Derek, the most unsuccessful train spotter in the world.