Posc-itis 

The excessive spit spraying coughing disease of "super-stoners"

Your Posc-itis disease acted up right after you hit that bong. Shooting me in the face asswipe.

Posc-itis by Ghiberty December 31, 2009

Bralcolm-itis 

The state of a relationship where the two partners are throughly afraid of each other, but neither will end it or admit it. The disease may include but is not limited to; avoiding each other, and not making eye contact. Teasing by peers is common. You know that your relationship has Bralcolm-itis when your mother likes him more than you do.

are they going to hang out after school?
of course they won't, they have Bralcolm-itis

Bralcolm-itis by wn[r9einv[9i September 23, 2011

Tetris-itis 

Someone who overly uses, addicted, to Tetris. They can't eat, sleep or be merry without one dose of Tetris.

A disease that makes the human addicted to Tetris.

Martyna has tetris-itis

Tetris-itis by DoctorR January 1, 2012

Jemma-itis 

Jemma-itis is a serious disease of laughter where you slowly die from laughter, starting with pain in the face and abdomen then on the throat slowly suffocating away until death. Cause is overly funny friend or some that laughs aat anything and everything.

(someone laughing really hard) Oh-no she/he got a case of Jemma-itis! Get away from him/her you die from laughter!

Jemma-itis by Otakuboy123456789 August 22, 2018

Jemma itis 

A newly found disease where the infected is slowly suffocated to death, the pain starts in the face and abdomen , then makes you dizzy of low oxygen being passed to the brain and then slow death of suffocation by laughing. The cause is by overly funny friends or some that laughs at anything even some drinking energy drinks. There is no cure for this, at least you die laughing.

(Someone laughing really hard and uncontrollably) oh no she/he got a case of Jemma itis, get away you'll die from laughter if you're infected!

Jemma itis by Victim of Jemma itis August 26, 2018

TheOffice-itis 

When you have excessive attachment to The Office show

I have TheOffice-itis; I have watched the show nonstop for 48 hours straight.

TheOffice-itis by ILoveMichaelScott September 9, 2018

Fortnite-itis

A term used to describe a fucking plays fortnite 24/7

This dude plays fortnite I bet he has the virus, the fortnite-itis

Fortnite-itis by Fortniteboi69 November 6, 2018