Think of an actual train - one goes over the tracks, and then another. Now, say these trains were friends of some asshole, and the tracks were... you get the idea.
by babette January 01, 2004

by bloddyazzcheese February 14, 2009

To call your friends to preform various unforgivable acts of a sexual nature on one female in rapid succession.
by un4gvable1 March 11, 2008

by mechaduck November 26, 2007

To do work on multiple people in a game or anything that has competition. IT IS NOT ANYTHING SEXUAL.
Jared: Wanna run train in gears later?
Dave: Yessir!
Jared: Don't invite Sam or else we won't be able to.
Dave: Yessir!
Jared: Don't invite Sam or else we won't be able to.
by Grogdog November 13, 2011

tim: do you wanna go run train
timothy: u mean like drive a train
tim: yeah what else would i be talking bout
timothy: u mean like drive a train
tim: yeah what else would i be talking bout
by timmydee32 July 06, 2007

by pistol08 January 19, 2009
