When one comes behind a male and hits him in the nuts or penis by coming up through the legs from behind.
by RunsWithWetBuffalo April 22, 2009
The four finger pain train is a controversial practice commonly used by boorish Neanderthal girlfriends in order to dominate their significant other. It involves the sudden unannounced insertions of the four non-thumb digits of the hand up to the hilt into the partners anus. This usually causes the the victim to writhe around in agony for several minutes. But in rare cases can be greatly enjoyed by the recipient.
Dude, I was in Econ the other day and Brian told me that he totally got four finger pain trained by his girl last night. The crazy mofo enjoyed it!!!
by Apricot Noontime Trivia February 02, 2011
An event which occurs when one woman is with five men at the same time. One in the pink, one in the stink, one in the mouth, and one in each hand.
Did you see Jessica go off with those five guys last night? She must have ridden the main vein pain train!
by Job Skywalker September 05, 2011
The state where one person endures a set of mixed yet painful emotions for a period of time after they left a relationship with a partner whom they've invested a great amount emotionally.
There is nothing you or anyone can do when you're on the pain train but endure it until you get off on the next station where things will be a lot better
by projectfalcon January 06, 2019
by John Elden Ring October 17, 2023