Gas exchange

A ritual performed by chemistry teachers where they strip naked and get into a butt to butt position and fart repeatedly exchanging gas.

Student: "Did you hear Miss Byrne and Mr Oles gas exchanged in front of the whole class."

Other Student: "God I bet you creamed yourself"

Student: "Ohh trust me I'm soaked"

by Jaquantavius February 24, 2021

The Manhattan Exchange

A Manhattan Exchange is where one person lays with their ass in the air, gaping it open, while another person stands over them and shits into their ass. Then they swap positions.

"My wife told me she wanted to try The Manhattan Exchange, so I shit into her asshole."

"Gross bro"

by PoopyBungus June 11, 2022

Dirty Stock Exchange

when a male vomits into a females mouth, resulting in semen deposit into both the male and females vagina.

Hey bro, heard u gave the “dirty stock exchange” to jennifer last night.

by the_ceo_of_sex February 22, 2020

dirt snake exchange

The act of shitting in another person's asshole and pushing it back and forth

My bro and I went out for a dirt snake exchange.

by Cheeseyweenie March 20, 2025

melon exchange

A melon exchange is when two pregnant women suck on each others breasts until they lose circulation and become unattached from the body. Then they are placed in a blender to be consumed by their child

"my mom wanted to abort me after she got melon exchanged"

by Rusty cabbage August 26, 2017

Mug exchange blue balls

Office terminology. When you have a mug exchange scheduled, but one of the participating members calls out of work that day or claims their mug hasn’t arrived in the mail yet. Therefore, postponing the mug exchange.

Lissett called out of work and left me with Mug exchange blue balls.

by michaellu March 10, 2019

Bullet exchange

Getting into a shootout

Things have, of course, gone south, and soon enough we'd be exchanging bullets instead of something. Can't think of what, sorry. OK urban dictionary bullet exchange u happy m8?

by literallynobody April 2, 2021