traintracks

n. when you have braces on the top and bottom row of your teeth, giving the wearer the look of having mini traintracks running through their mouth.

the gaps between your teeth are the bars and your braces are the tracks.

rebecca: guess who's getting traintracks?
courtney: who?
rebecca: simon! he's also going to the same orthodontist as me!
courtney: doesn't mei go to that one too?
rebecca: oh, whoops...

by Citronic January 3, 2009

training bra

When youre a kid and dont have big tits this is what you wear, its worn for the sake of wearing a bra rather than anyhting else.

my sis is into her training bra- cute!

by edwina April 8, 2005

train job

When a few guys line up with their pants down and one girl gives each of them a blow job one at a time in order.

The drunk girl at the party last night was giving train jobs.

by angela May 13, 2005

J-Train

Used in a Toby Mac song refering to the "Jesus train" and going to heaven parts of the song say "I got a ticket to ride to the other side" ,"ride ride wanna ride on the J-train"

i got a ticket to ride th J-train to the other side

by JesseWHO? April 15, 2006

dinosaur train

In reference to a popular cartoon on public television.

When a younger woman has sex with multiple male partners at the same time, all of them being much older than she is.

Joan: Can you believe Becky ditched us at the bar last night to hang out with those old dudes?

Grace: Yeah, I bet she totally rode the dinosaur train.

by Samurai of funk September 24, 2011

D Train

While having sexual intercourse with a women from behind, doggy style. You hold onto her hair, with every thrust you yell "Chugga, Chugga, CHOO-CHOO" and slide forward in a complete circle.

Guy 1: So how was it last night?
Guy 2: Amazing! I ran the D Train on her all night, wore out a path on the carpet.

Girl 1: what did you do last night?

Girl 2: Took a ride on the D Train, best ride of my life.

by BoomSon May 24, 2014