myspace groups frequented by 14-17 year old scenesters (mostly girls) who have thousands of friends and lead a very large part of their lives on the internet. the point of these trains is to get a shitload of friend requests, although they seldom actually interact with most of the people they meet on myspace in real life. one must apply for the train by adding the owner, having a large amount of friends ("must have at least 2K"), and look extremely scene. once accepted, members must post the train in a bulletin a set number of times a week. the bulletin displays small pictures of all the train's members with the owner on top. members are often divided by how many friends they have, with "riders" often being a low rank. to devote one's time to this essentially means you're spending too much of your time on myspace.

Noun: a friend who is usually only called upon by a friend when a more primary/prominent friend is unavailable.

Taken from the term “second string” in an athletic competition situation. In football, if the star quarterback gets injured during a play, the second string is called off the bench to replace him/her. A “Second String Friend” is essentially benched until needed, if ever.

Synonyms: Plan B, Second Choice, Secondary Friend, Benched Until Needed

A whore that goes from one partner to another and then on to another just as a trains box cars go from one to the other

a myspace group (usually called something with 'vanity', 'deadly', 'perfection', or 'morbid' in it) that has a bunch of scene kids who have never met in it. they are a train because twice a day everyone has to post a bulletin with pretty people's pictures in it. bear in mind you must have it least 5000 friends and must be GORGEOUS to make it.

HUGE slut, the leader of sluts