Backcar
The back carriage of a train - typically a suburban commuter train. Often used by writers as a place to hang out and get up with staining ink flow pens, blast beats, punch on, smoke ciggies between the carriages or pop the guardie.
Lad 1: “City loops after school?”
Lad 2: “Eshay, meet you backcar on Platform 1”
Lad 2: “Eshay, meet you backcar on Platform 1”