Where a usually slutty girl, often drunk, gives it up to a somewhat large number of guys, one after another after another. Metaphorically speaking, the girl is like a urinal, just instead of urine, the guys using her are relieving themselves a little differently.
by amadhatter53 October 11, 2005
 Get the trainsmug.
Get the trainsmug. by alee2006 June 26, 2018
 Get the Trainmug.
Get the Trainmug. If someone says the train is leaving in 5 minutes be prepared to board the trainin about half an hour.
by yourmuminmybednow February 26, 2011
 Get the trainmug.
Get the trainmug. Having to do with a girl giving it up to a whole bunch of guys at the same time, called "riding trains"
by Double G himself July 26, 2004
 Get the trainsmug.
Get the trainsmug. by Pietari January 16, 2004
 Get the to trainmug.
Get the to trainmug. by John Thomas October 24, 2003
 Get the A-Trainmug.
Get the A-Trainmug. 