Motorbutting

When you draw nipples on her asscheeks and motorboat her ass.

"I'm so motorbutting you tonight."
"What the fuck is that? Is it another one of those weird Urban Dictionary sex things?"

Motorbutting by zephwynder June 13, 2018

motorbutting

The act of perform a motorboat, but on someone's anus.

We were about to start some rusty trombone, but it wasn't hard, so I turned to doing some motorbutting.

motorbutting by scumbeater November 15, 2013

Motorbutting

To motorboat a girls ass. Just like the titts except you do it with the butt cheeks

My girlfriend was annoyed by me motorbutting her every time she bent over

Motorbutting by Nicolap November 16, 2017

motorboating 

It means the activity of putting one's face between a woman's breasts, and rocking turning one's head rapidly from side to side while making a noise like a motorboat.
"Put your head between her tits and go bbl bbl bbl bbl bbl..."

"I heard Jimmy was motorboating Bella at school
she said it tickled"

motorboating by corgilover18 November 13, 2018

Ass Motorboating 

Verb. The act of violently shaking your face in between the cheeks of an amazing ass.

While I was coming out of that pool, I couldn't help but ass motorboating that big ass booty!

Ass Motorboating by Fat Ghandi January 2, 2012

Motorbating 

The act of masturbating while in a car.

Motorbating helps Sandy stay awake when she needs to drive along on long trips.

Motorbating by Kate Charlton October 3, 2008

Motorboating 

The placement of one's face, specifically the mouth, into the area between a well-endowed woman's breasts, followed by a rapid shaking of the face in a side-to-side motion accompanied by yelling. The resulting sound that is created sounds similar to an outboard boat motor.

Sherry was wearing a low-cut top and Mike approached her and started motorboating in her cleavage.

Motorboating by BMan01 November 27, 2005