Sinfest Pipeline

A pipeline in which one begins with relatively progressive views except for their dislike of transgender folks, and ends with alt-right or even fascist-esque views.

Originates from the comic artist Sinfest, who began as a trans-exclusionary radical feminist, and devolved into a neo-Nazi.

Guy 1: It feels like yesterday Sam was super progressive aside from his transphobia, but now he's so hateful!
Guy 2: Sounds like he went down the Sinfest Pipeline.

by thedefinerrrrrrrrrrrr February 1, 2025

native pipeline

When you take an absolute steamer of a dump in a condom and freeze it to later give to your girlfriend to absolutely blast herself with.

I gave Sarah a native pipeline last night and she will never go back to her old ways.

by Blumpkinking44 December 2, 2022

British Pipeline

The act of smothering a crumpet in tea, the tea being a lubricant, and shoving it your ass, then fisting yourself until it comes out of your mouth.

Oh my god, did you hear? Steve gave himself a British Pipeline!

by Depressed Male July 30, 2017

Thomas the Tank Engine Pipeline

Anonymous Caller: Me and my cousin do the Thomas the Tank Engine Pipeline for fun.

Whataburger Employee: What's that?

Anonymous Caller: Its where you take a Thomas the Tank Engine toy and put in a condom and shove it in each other's ass.

Whataburger Employee: Sounds like fun I'll try it after work!

You take a Thomas the Tank Engine toy and put in a condom and shove it in your ass or another's ass for fun; then you have a Thomas the Tank Engine Pipeline.

by An Enthusiast of Pipelines December 12, 2022

North Dakota Pipeline

The North Dakota Pipeline is a sexual act during anal sex where a woman takes a bunch of laxatives and the man will to finish before they take effect. This originates from the Keystone oil spill in North Dakota. Not to be confused with the Alaskan Pipeline.

Tom tried the North Dakota Pipeline and was not able to finish in time to avoid the mess....Too bad for Tom.

by Sweede1996 June 14, 2018

American pipeline

The act of rolling up a burger and replace the mayo with cum and freezing it and put it in your partners pussy

Andie "Me and Sally did the American pipeline"

by Johnny_sins69 March 20, 2021

Greek Pipeline

The act of collecting vaginal discharge in a condom and freezing it overnight to use as a dildo.

Known as the greek pipeline because discharge tends to look like greek yoghurt.

Seth: "Hey Brittany, wanna come give me a greek pipeline?"

Brittany: "You know I can't do that again. Daddy will spank us!"

Seth: "Aww shucks , you know how much I love those."

Brittany: "I know Sethy poo, I know."

by Spacenugs69420 April 17, 2024