Shuttling 

When a man inserts one end of a hamster tunnel into his asshole and the other end into the other male/females asshole. Then letting off a huge fart. Therefore sending his fart to the other person.

Toby: Jake do you wanna shuttle again?
Jake: Oh yeah, shuttle me, baby.
Toby: Good because I've been holding in this huge fart all day just for you ;)
Jake: I love shuttling with you Toby ;)

Shuttling by Allupyourfinger January 27, 2017

I’m shutting your butt down 

What Quentin Tarantino says when an TV presenter wants to fuck with him asking why his movies are so violent

QT: ...I don’t want to talk about the implications of violence…

KGM: No, but you haven’t fleshed it out.

QT: It’s not my job to flesh it out.

KGM: No, it’s my job to try and ask you to.

QT: And I’m shutting your butt down!

I’m shutting your butt down by SebIs#SWAG January 12, 2013

The shutting up theory

Allow me to explain.

This theory speculates that by closing your mouth while simultaneously ceasing your lips to move people don't have to hear your annoying ass and by doing this it means nobody has to suffer from hearing what you have to say. This is due to how annoying you're being right now and everybody wanting you to stop talking.

- Come on, that was never a red!
- Have you ever heard about the shutting up theory? Allow me to explain.

The shutting up theory by XpOiYgjkL April 3, 2021

Shuttling 

Shuttling is where one man places his butthole up against another mans butthole and takes a poop. that poop is transfered from the first mans butthole to the second mans butthole without ever seeing daylight.

i walked into the bathroom and caught these two guys shuttling

Shuttling by Noel62H April 20, 2011

Shutting down nifty’s with the boys

If the 6th definition of nifty on Urban Dictionary is exhaling weed immediately after inhaling it do avoid the taste, when you shut down nifty’s, you like the taste of marijuana. Shutting down nifty’s with the boys is patrolling parties and making sure NO ONE attempt to “pull a nifty”.

Me and my friend (we call him “sweet potato”) spent last Saturday night shutting down nifty’s with the boys after many claws.

Shutting down nifty’s with the boys by CornerPancake82 January 23, 2020

Shutting down the studio 

When you have to give up pursuing a girl because it isn't working out.

Yo dawg I'm shutting down the studio down on her she is never around on the weekends.

Shutting down the studio by KJD May 24, 2012

Shuttering 

When a person can fart on command therefore opening and closing their butthole like a camera shutter

Stewart was shuttering so hard that he shot crap out on ross.

Shuttering by dirtyvulture November 22, 2011