Halo53 

a 10 year old boy who frequents internet forums trolling for sex and attention

Halo53 is trolling for sex and attention

Halo53 by Everyone. March 13, 2004

halo53 

A ugly kid with no life and eats garbage and sleeps with dogs and has tuna in his pants and is very very ugly and i dont know why but he is gay!

Halo 53 is one gay person, he like manholes.

halo53 by Antiherosk8er March 27, 2005

Halo53 

A guy who often scores killamanjaros, killgasms and killginas in Halo 2.

MOM, you RUINED my killgina

Halo53 by H53 March 27, 2005

Halo53 

A teenager who is great at videos games, especially Halo, Rainbow Six 3, and Mech Assault. A regular to RedvsBlue and the 7th Column.

Ah damn, Halo53 just owned me in Mech Assault again

Halo53 by Mike March 11, 2004

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