train decorated with anime characters
Slang term derived from 痛い (いたい, 'painful' or 'cringey'), referring to vehicles or objects covered in anime, manga, or game character decals. Used for trains wrapped with such designs.
Anime-decorated trains are often stopped at Akihabara Station.
That anime train is covered with characters from a popular anime.
From 痛い (いたい, 'painful' or 'cringey') + 電車 (でんしゃ, 'train'). The prefix 痛- is slang for something embarrassingly covered in anime/manga designs, originating from the idea that such decorations are 'painful' to look at.