To do a lengthy fart whilst walking. Usually produced intermittently with the impact of each footstep.
Hot blonde with enorm tits: wow that was the most awesome fart train I've ever heard - can I please give u a rim job?
by CPeno September 25, 2013
To commence farting as you start walking down a hallway or passage - trying to make the fart last all the way to the end. Ensures a consistent unpleasant experience for any followers
Man! - I just followed the longest fart train ever - its was awful!
by taranto September 25, 2013