shuttle bus 

When the middle person in a spit roast provides the necessary motion or is jostled back and forward.
Also an ozbargain inside joke.

Is this a free shuttle bus or a free “shuttle bus”?

shuttle bus by Peter Peterson Petersen August 31, 2018

shuttle bunny 

A woman who drives the men to and/or from an outdoor recreational activity.

AKA Shuttle Bitch

Hey man, could we use your girlfriend as a shuttle bitch?

shuttle bunny by inequitable November 10, 2002

shuttle docking 

when you take a shit, freeze it, and then use it as a poo-dildo.

Me: The other night we were so wasted, this chick shuttle docked herself.

My Friend: What is shuttle docking?

Me: When you freeze your shit and pleasure yourself with it.

shuttle docking by Dirtanian September 18, 2008

Shuttle-Fuck 

when you have a vehicle full of people and they all have to go in different directions. It can also be used to refer to all of the people in the car

You shuttle-fucks are using all my gas

Shuttle-Fuck by artgirlaia January 24, 2011

Shuttle dock 

Two guys, one, girl, one condom. Guy number one uses the condom with the girl. When finished, he goes tip to tip with guy number two and rolls the condom onto guy number two. "Docking the shuttle."

"Mark and I were in quite a bind last night. We only had one rubber, so we had to shuttle dock it."

Shuttle dock by Faux 1605 December 17, 2008

Shuttle Mutz 

a woman who is seen as a fake, making other people think she has abilities beyond what she can actually do

She cant percieve the future, what a shuttle mutz

good luck with that shuttle mutz, i've been om nom noming on his soul for a good ten years now and i havent a life to taste

Shuttle Mutz by Crunchbite606 November 14, 2009

Shuttle Valve 

The blamed single-point failure of a man's proposed mission to get laid when the real mission was to Premature Ejaculate and cock block his own cock, thereby wetting pussies but never giving them the satisfaction they don't deserve.

This has been said to be the highest zen move of a few super advanced fuck masters. Namely the Oyel Giants.

Whatever, I've been fucking around with Joe since Billy's shuttle valve is acting nuts and he leaves the seat up and my butt keeps hitting the toilet water and whatever I'm just like fuck that, I'm not even going to tell him, but then again Joe's shuttle valve has been acting weird too lately. Whatever I deserve it... I'm a bitch

Shuttle Valve by Spill Communication June 25, 2010