Halo3itis 

The condition when one plays Halo 3 nonstop, night and day, and the rest of the world falls by the wayside, girlfriends disappear, your job disappears etc....

I was in my 40th hour of Halo3itis and took the time to answer the phone and listen to my boss fire me, and my girlfriend kept walking in front of the tv with her boxes she was moving out with.

Halo3itis by ScootM October 12, 2007

halo3itis 

When you can only think of nothing but Halo 3.

Jacob couldn't eat, sleep, or even use the bathroom because of his Halo3itis

halo3itis by Johnny S.. October 18, 2007

halo3sis 

the act of playing Halo3 while sleepwalking, or attempting to.

Dude, i woke up with my 360 controller in my hand AGAIN. i think i might have halo3sis.

halo3sis by Dylan Gerson November 6, 2007

halomitosis 

A disease quikly spreading around the world. This disease makes you addicted to video gaming (not just halo). Common symptoms are lack of sleep, pretending to carry around a gun with you, threatening to shoot people with plasma guns, and calling everyone a n00b. People who suffer from halomitosis usually stay in dark rooms gaming (which leadis to their pale skin and fear of sunlight). They also hav poor social lives and are called losers.

As the Halo 3 hype grows exponentially larger, the halomitosis epidemic grows along with it. Anyone without any self control or friends hase a small chance of surviving this epidemic.

halomitosis by runningbacontree September 22, 2007

halo3osis

its when u just got halo and noticed the the campaign is like a lil longer than gears so u go on online for like 5658 hours till you miss the school bus and realize that the game fuel taste terrible but ur just owing so much u basely just dident care and keep on playing till kidposin owns u and ur relived from ur trance.

guy 1: yo man i have terrible halo3osis and i missed school and that test.

guy 2: o man the test was easy but why did u decide to come in.

guy 1: one word kidposin

halo3osis by dominic sisti January 3, 2009