Top definition. A group of guys stand in a line outside a room. One by one, they enter the room to have sex with one girl inside. The line must have at least 7 guys to be qualified as a train. Go to the back of the line.
Og fresh out first day home after 4 years in prison running a train on my bitch with me. Breaking her in Gang gang gangbang. Thugs run train on Ebony chick. Training Running On A Thot. Sexy Strippers - Nasty strippers lockdoor.
He was 13, and older boys mocked his body as they all tried group sex on a Harlem rooftop. The Internet applauded rapper Webbie when he posted a video scolding his son after catching him in bed with a friend and a young girl. At least for a little while.