zombie train 

Having sex with 5 or more people while being extremely confused.

In Vegas, you can enjoy many activities including a zombie train.

zombie train by Turntquist July 15, 2016

brig train 

The brig train is a girl who trys to get with everyone.... no ass and is like 5 yrs old #Whippppper

Lets ride the brig train.. all aboard!

brig train by elijaha416 June 30, 2016

big train rave 

A big train rave

The lads went down for a big train rave

big train rave by Minecrafter1012312 June 22, 2016

escape train 

A cheaper value of train, with limited services

Escape train is too cheap for me.

escape train by jakezhao100 May 23, 2016

Mississippi Train Station 

A game where a glow stick is inserted into the anus and a round of hide and seek is played while the "seeker" uses the light shining from his/her anus.

"Yo bros, anyone got a glow stick? I wanna play a dank ass round of Mississippi Train Station"
"No way man, that game gave me 20 hours of diarrhea!"

Mississippi Train Station by sweatyfatphuck August 1, 2016

meme-train 

similar to "bandwagon" but specifically in relation to social phenomena

"getting on the meme-train"

"I've got a ticket on the Harambe express"

"remember lolcats? that shit was like the Ciurea rail disaster of internet memes"

meme-train by Rosettastoned101 August 5, 2016

Flash train-logic 

The concieved notion that you can accomplish anything, simply because it is required of you in that moment. Even if you have no background of doing this or there's been no setup for you being able to do this in the past.
Basically a lousy way to explain away a Deus Ex Machina.

As seen on the Flash:
The Flash somehow manages to get a train to vibrate at the same speed he is, so that the train goes through some rubble in the road.
Later:
Kid Flash: "How did you do that?"
Flash: "Because I had to."
Me, watching the show: That's some Flash train-logic right there!"

Flash train-logic by BoxerJoe June 2, 2017