igitis 

A degenerative disease of being too stupid to figure out how to post on an internet message board.

The hypocryte Diggle posted in the wrong thread due to Igitis.

igitis by H. Eskin October 10, 2006

IBitis 

A deadly disease that's known to cause insanity, insomnia, and often death. Symptoms include dark bags under your eyes, excessive yawning, hair loss, fatigue, loss of appetite and shaking. Not to be confused with senioritis, this disease infects all IB students around the world.

That kid has the worst case of IBitis I have ever seen; he doesn't sleep, doesn't eat, and his eyes look constantly bruised.

IBitis by Gamer71320 July 8, 2010

ightis 

After eating a full meal, you may be hit by ightis. It is when you are extremely full and satisfied and feel like sitting and doing nothing.

'I hope i don't eat too much, or else i might get ightis."

ightis by Luke_91 September 14, 2007

Igirisuism 

A "religion" based off of the anime hetalia that worships The Eyebrowed One AKA APH England. They're unified under possessive scones and extravagant eyebrows. In this religion you can master the arts of black magic, have unlimited tea, possess others using scones, and own your very own flying mint bunny, all whilst being sarcastic of course. They are very against the religion of Doitsuism.

I practice the religion Igirisuism.

Igirisuism by I hate making up names October 3, 2017

csi-ititis 

When one watches too many episodes of CSI (Las Vegas, New York, or the terrible Miami). The subject may start to investigate clues that he or she sees on a daily basis. Can lead to dilusional thoughts like whether or not someone is stalking you, whether or not Mrs. Jenkin's cat was murdered, or that you will be wrongly convicted of a murder because you left a fingerprint on your remote control.

I have developed csi-ititis from watching a marathon of csi on the spike tv channel.

csi-ititis by Erikitalo January 11, 2008

Igirisu 

Igirisu is a guy with incredibly big eyebrows.

Hey, look at these igirisu eyebrows!

Igirisu by sharkbits November 16, 2014

iLitist 

Someone who thinks their iPod is better than your portable media device.

Shayne is an iLitist dissing my Zune.

iLitist by chrisxdarsh March 6, 2009