Assivitis 

Disease that causes inflammation of the ass.

Don’t go bare ass in a hot tub. Might get the Assivitis.

Assivitis by Normal norm January 19, 2022

Activitise 

To throw an object at a fat person only because the person is fat. In doing this you encourage them to excercise.

Guy 1: Yo lets go Activitise that rumple plumkin over there, maybe we can help him out.

Guy 2: Fo Sho, i love helping people out; go grab me a brick...

Activitise by oBROWNx December 22, 2008

assritis 

arthritis of the ass (i.e. the tailbone).
quite literally a pain in the ass.

My assritis is acting up from sitting on this hard chair all day.

assritis by txblueyes April 19, 2011

Plantar Asciitis 

The pain associated by planting one's ass in one place for too long.

"I need to take a break. If I stay at my desk one more minute, I'm gonna get Plantar Asciitis."

Plantar Asciitis by HooverLiketheDam June 4, 2015

assinitis 

a term for someone who has their own head stuck up
their own ass as far as their shoulders.

someone who does very dumb shit and is happy/ when one trades a several hundred dollar tool for a

fifty dollar piece of shit and thinks he got a good deal

he has a bad case of assinitis

that guy really has head up his ass

assinitis by fuckdome February 18, 2011

Askilitis 

An illness (might be terminal) that causes severe nervous breakdowns and brain reactions and is triggered by someone asking nicely or politely for something

Mera couldn't ask for the stickers nicely because of her askilitis

Askilitis by Trojanfrickinheart July 8, 2022

Assititus 

Undocumented medical condition resulting in chronic foul breath. The stinch resembling that of one who's consumed an extra large shit sandwich. Not to be confused with the garden variety halitosis, assititus has the ability to literally steal your breath away, peel the paint off of walls, and to cling to anyone within talking distance of the sufferer.

Offering a sufferer of assititus a breath mint,Tic-Tac, or gum to subdue the offensive smell is useless, as the result is similar to spraying airfreshner after taking a healthy dump, your left now with the scent of shitty roses or shitty pines...still shitty none the less.

Listerine couldn't put a dent in what's ailing his mouth, he's got a case of assititus.

Assititus by C.A. Stallworth April 24, 2006