A man mounts a dildo on either side of his penis then tapes them (preferably with duct tape) along with his penis in the middle, the penetrates an anus or vagina, depending on sexuality and fetish.
Woman: Did you hear about last night? Rebecca asked her boyfriend to do something naughty, and he did the Pennsylvanian Passenger Train!
by Grilbus747 June 04, 2018
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Dirty G-train

A mystical man, who is relentless in his pursuit to fingerbash as many chicks as he can. Certain females are constantly fighting over tickets to the G-Train. Once the G-train l is knuckle deep and motorboating the shit out of them, that’s what we call a “Dirty G-train”.
“Oh wow look at me, I’ve got big tits and a gashing vagina, all I want is a ticket to score myself a Dirty G-Train
by Vas Ytrid April 03, 2020
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Mississippi Mud Train

When one partner fucks their partners mouth, while letting a turd slip out on to their significant others chest, allowing it to slide down their torso.
Man, I can’t believe she let me Mississippi Mud Train her!
by LaneMikey April 15, 2018
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Millet train stop

When you bring home two girls from a bar or restaurant. When bringing them home one has to be heavy set. You would insert your penis in the skinny one doggie style. While the heavy one pegs your with a strap on. While this is happening you are wearing a train conductor hat and yelling choo.choo.
I brought them home from BP's back to millet giving them the old millet train stop

Man am I sore today
by Dosethouevenrectum October 11, 2023
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Baby cougar in training

When you are in your late 20s about to hit 30 you are considered a baby cougar in training. Meaning that from age 30-32 you have a leeway period that allows you to transition into your new role as a cougar.
Damn your about to be 30 and a baby cougar in training. It’s all good though you have a 2 year leeway period until your 32
by Youknow779$ March 04, 2018
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The Osaka Bullet Train

The act of self-pleasure while on a bidet and immediately preceeding climax, one initiates the bidet to spray firmly on the rectum, thus creating a supergasm.
Guy 1: Have you ever been to Japan?
Guy 2: Yes, I experienced The Osaka Bullet Train for the first time there.
by 4guys1house December 29, 2018
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Birth Month Training

It is when you live in a state that requires you to have all your licenses and annual training done on your birth month.
Bro #1: Dude, let's go to the club velvet this friday!

Bro #2: I can't man I'm broke. I had to use my whole check to pay for my birth month training.
by souljajc May 03, 2010
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