noun
second-to-last train of the day
Dated term, historically used in contrast with 赤電車 (last train). Now rarely used; modern Japanese prefers 終電の一つ前 or similar expressions.
See also: 赤電車
昔は青電車という言葉で、終電の一つ前の電車を呼んでいた。
In the past, the term 青電車 was used to refer to the train just before the last train.