A time honored Tradition from time immemorial where bored, sexually frustrated seamen engage in sex en Mase. Traditionally the lowest rank or youngest seaman is the “engine” at the front of the train and the More senior seamen get to be the “caboose” Or last in line.

While less popular today then in the past, Seamen still engage in this activity on long voyages, especially in colder seas.
My Uncle reminisced fondly of his day in the navy, in the 60s navy trains were an almost nightly affair.
by JaxxTheHaxx October 23, 2020
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A Cult that worships the Train Gods, like Thomas the Tank Engine. They perform daily sacrifices, usually on people who annoyed the gods or just some random dude. Also their arch-nemesis is Stupid Idiot Cult.
It was time for Train Cult to perform a sacrifice.
by Train Person December 11, 2020
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The train you and a few mates get on when you're going for a messy journey through space and time. Also known as the K Hole train.
Jake: I wanna go on the messy train
Ross: Yeah, Lets make some lines

2 fat lines are made and snorted.

Jake: Beaut
Ross: Yeahhhh
by Orange Gregory October 4, 2009
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A young attractive woman that can easily be coerced into a three way with you and one of your good buddies. Also can be the only girl at a sausage fest party and every guy takes turns having sex with her.
Example 1
Dave: “Shit, look at her!”
Steve: ”Now that’s a nice piece of train meat.”
Dave: “Yeah? Wanna go run a train on that bitch?”
Steve: “Hell yeah!”

Example 2
Ron: "Damnit why did I come to this party is a sausage fest!
Dan: "Don't worry a nice piece of train meat just showed up"
Ron: "Just make sure if you go before me leave me something to tear up."
Dan: "Don't worry bro I always look out for the homie"
by smellie mofo July 21, 2011
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A usual excuse when you want to get out of something to go to a much more important event
Hey Clint, sorry I can’t make it tonight. I got some army training to do with my family
by kksaimonawng April 4, 2018
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Playing with your kung fu instructors nunchuck in the woods.
I'm going "training in the woods" with Dave. The act of oral sex in an undisclosed location.
by The wing Wong guy May 16, 2019
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The guilty way of describing the disgusting habit of segment hunting. It’s so disgraceful that no one should ever give kudos
Maz: “you want to go segment hunting?”
AB: “but people will see and get annoyed”
Maz: “we will call it interval training
AB: “oiling my bike up now
by Brothatssaaaaaaackdd December 29, 2021
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