noun
hanging ad inside a train car
Refers to the small posters or advertisements suspended from the ceiling or straps inside a train carriage.
通勤電車の車内吊りに、新発売の飲み物の広告が出ていた。
An ad for a newly released drink was hanging inside the commuter train.
Compound of 車内 (inside a train car) and 吊り (hanging).