butt busting 

to describe any type of task that requires you to sit for long periods of time, usually at a desk.

Also if you sit for a long time you may develop hemorrhoids, which is painful and that may seem like your butt got busted.

I thought up of this term from "butt buster", an exercise movement that firms your buttocks, basically they are squats.

I can't leave my desk until I finish all these reports, talk about butt busting work.

butt busting by Damon January 26, 2005

bustin' butt knuckles 

The consensual act of having aggressive anal sex with someone who has horrific hemorrhoids in order to break them down

Angie knew when she had got hemorrhoids again it was time for Peter to start bustin' butt knuckles to get some relief

bustin' butt knuckles by von groovy April 11, 2019

Buttjusting 

Adjusting your butt in your chair while gaming or streaming.

"gimme a sec, buttjusting a bit"

Buttjusting by PhilosoPhoenix August 2, 2016