Halo twosis 

When you pull an all-nighter of Halo two online and forget to brush your teeth, resulting in bad horrible breath.

Can also be used with halo 3 if you have an X-box 360

Stan and Justin were up all night playing halo two online.

How do you know that?

They have Halo twosis

Halo twosis by Steve Ph December 9, 2008

halotosis 

Noun - bad breath due to excessively playing Halo over a course of 2 - x days.

Carson: "Hey guys, no one was on Live last night, what the fuck?"
Devon: "Dude, you gotta fix that halotosis you got goin on or else we will all die!"

halotosis by Devon Naccarato May 16, 2008

halotosis 

An afterimage type of alteration to your visual and balance processing caused by many hours staring intently at the Halo video game screen, jacked on adrenaline but barely moving your body except for your twitching fingers, navigating through dark alien-infested tunnels with a weird purplish flashlight mounted on the helmet of a wobbly android war machine that you operate via the clumsy X-Y-Z axis joystick interface...distorts your senses when walking and driving after, especially in the dark at 2am when the battle is finally put on pause...save game for later.

After dinner, he said "Slayer in Blood Gulch, or Snipers in the Power Station?" When I got up to pee, it was 2am.

"Yo dude, I gotta work tomorrow..."

"OK, but let's just clear this level and smoke another one before you go."

I had severe halotosis on the way home, with green crosshairs hovering in my field of vision...the flood was everywhere, splattering off the windshield of my Warthog as I crushed them into roadkill.

halotosis by jona fin May 12, 2009

halotosis 

Bad breath suffered by the religious

Father O'Reilly's halotosis wasn't so noticeable after he'd been drinking whiskey

halotosis by Emma Chizett December 6, 2006