WBC-itis 

A condition that affects some atheists, though certainly not all; primarily the ones who are intolerant of religion. Essentially, they take the activities of the westboro baptist church (or WBC) and try to apply them to all Christians, or even to all religious people. The WBC is an extemist hate group, and it is very important to note that they reject, and are rejected by, all other Christian denominations.

This condition may be unintentional, and therefore born out of ignorance; or it may be intentional, and therefore born out of malice.

Stupid person: I hate Christians! All Christians protest all the time with signs that say "God hates fags", and they always disrupt funerals and tell everyone that they're going to hell!
Smart person: No, moron, that's only the westboro baptist church, and no other Christians. You're clearly suffering from WBC-itis.
Stupid person: What? I don't understand!
Smart person: I know you don't.

WBC-itis by klopek007 February 22, 2010

Hedy-itis 

The process in which one becomes unable to control his/her blinking. Often blinking occurs 4-5 times a second. In worse cases, the diagnosed will blink and hold it for 1 second.

Getting hit by the heat while exiting the car gave me a bad case of Hedy-itis.

Hedy-itis by Disgruntled Postal Employee September 26, 2005

Cupcake-itis 

a condition caused by a lack of cupcakes

Give me some of your delicious cupcakes to end my cupcake-itis

Cupcake-itis by Cupcakebandit April 30, 2011

Bruh-itis 

A disease that causes someone to uncontrollably say “bruh” in every situation possible.

Other symptoms are saying “nice,” “ok,” or “rip.”

Has no cure and can affect someone’s ability to hold real conversation.

Gio: I think you’ve got bruh-itis man.

Blake: bruh

Bruh-itis by MCU nerd 05 November 18, 2019

Mc'Itis 

he shit your pants feeling you get when you eat McDonnalds. The Itis is brought on by an Addiction to grease and salt, and is the after math of cramming food substitutes like double chz burgers down your gullet.

aw shit, i just ate 2 big macs and a half gallon of sugar. the mc'itis is gonna turn my guts inside out.

Mc'Itis by WienerBang March 12, 2009

can't type itis 

A condition in which a chatter has trouble spelling the simplest of words

i was so frustrated cuz my can't type itis was acting up

can't type itis by fball_jones August 11, 2009

Sick-for-it-itis

This is used to describe people who exclusively use Sitka branded gear, and think they are better than everyone else because of it. Sitka's motto, "sick for it" is a common hashtag people use on social media when posting about Sitka gear, hence the disease "Sick-for-it-itis" . People that suffer from this disease are usually cocky, and look down upon others because they spend thousands of dollars on mediocre, at best, gear.

"We knew Bobby had a strong case of Sick-for-it-itis when his entire instagram account consisted solely of Sitka gear pictures and #sickforit hashtags."

Sick-for-it-itis by DeekDog97 December 26, 2016