Train tracks

When someone's underwear is loaded with skid marks

That guy over there has train tracks in his underwear.

Train tracks by Keebles April 4, 2023

Virtual Train Tracks

A euphemism for automatic bus guidance that makes a guided bus project sound more impressive than it actually is.
(= trackless train)

China recently unveiled the world's first train on virtual train tracks.

Virtual Train Tracks by lagcom2000 March 28, 2023

Laying Train Tracks 

The act of masturbating and defecating simultaneously.

"Where did Matt Richardson go?"

"Oh, he's laying train tracks in the bathroom!"

Laying Train Tracks by dwinters January 25, 2016

Dusty Train Tracks 

A shriveled up, dry vagina.

Yo Joey, you do not wanna fuck her, she got some Dusty Train Tracks

Dusty Train Tracks by Dardy Spud January 19, 2019

train track wack 

The act of masturbaiting on a railroad while a train is coming in the hopes to finish on the windshield of the train.

Jim: I heard Tommy completed the train track wack yesterday and lost an arm

Bob: Small price to pay for such a title

train track wack by SpicyTiger October 15, 2019

train tracking 

When you rub your dick between the vagina lips, without ever sticking it in the actual vagina.

Wow, so Kevin's girlfriend Chelsea won't have sex with him? That's fucking gay.

Yeah, but at least he is train tracking her.

train tracking by Apt. 42 November 28, 2009

Frickity frack on a train track 

When you get really mad but you’re in school so you can’t swear

You’re a frickity frack on a train track

Frickity frack on a train track by Jodapotato March 29, 2023