Dirtboxing 

When you know you are going to plan a night of anal sex, to perform anal sex with a partner, male or female

Ye man gonna go dirtboxing with that girl tonight.

Oh she loves dirtboxing, right in the ass

What you been upto this weekend, dirtboxing ?

Dirtboxing by Jimmy Mc Anus December 16, 2005

dickboxing 

A sport including two men (gay or straight) who with their mighty hard swords battle until the opposer loses by either death or cum.

also a mock name for kickboxing

Person 1 "i challenge you to dickboxing battle to the cum

Person 2 "get ready to cum first, challenge accepted"

dickboxing by Canarisk December 23, 2022

dirtbiking 

The placement of one's face, specifically the mouth, into the area between a person's buttocks, followed by a rapid shaking of the face in a side-to-side motion, accompanied with an extreme exhale, resulting in the sound of a two wheeled motorized vehicle. See Motorboating.

So it turns out, Shit Faced and Dirtbiking are the same thing. Heeheehee

Is that shit on your lips or are you just happy to see me?

I've been dirtbiking so long, even Cookie Monster won't eat my chocolate chips.

dirtbiking by Pappa Weird January 1, 2012

dirtbiking 

just like dickriding but u can say this out loud in class and not get in trouble by the teacher.

term started in Baton Rouge, La.

stop all that dirtbiking .

hop off that dirtbike.

cool it lil one you could stop dirtbiking.

dirtbiking by dirtbiking August 22, 2020

Dirtboating 

dɘrt'-bot-ing - vb: the obscure sport of sailing boats that do not float on lakes which are not there

We are going dirtboating on the dry lake testing the new wheels.

Dirtboating by Flying-Monkey November 19, 2018

dirtbiking 

The act of shitting oneself whilst wearing tight biker leathers or racing suit.

'I almost crashed my road-bike yesterday, and ended up dirtbiking'.

dirtbiking by McTastic July 16, 2008

Dirt Boxing 

Licking an anus.

Ben went out last night and ended up dirt boxing Jennie!

Dirt Boxing by dirt box dave June 20, 2013