Masterchillin

masturbating while doing something else (such as playing video games, watching regular t.v., or im-ing)

i was totally masterchillin in that halo game last night!

by john bowendil March 17, 2008

Master Chief'd

Verb, to jump from a height and own somebody or bodies, who were below you

omg i tottally master chief'd that guy

by Ripht October 15, 2007

Master Chief

A heavy smoker, able to hit and clear a bong all at once.

I am Master Chief!

by Loganbuuullshit October 21, 2010

MASTER CHIEF

The best most badass soldier ever created and also can take on a legion of (grunts) (jackals) and (elites) by himself

MASTER CHIEF is so badass

by MASTER CHIEF 117 November 18, 2016

Master Chief Escape Plan

When one utilises the battle tactics and escapology of the Master Chief from the Halo series.

This can be adapted to many games and involves the player shooting anyone who gets in his way, whilst running like a bitch to get somewhere safe, or to an evac. point.

This technique can also be used in conjunction with Master Chiefing It

Thought I'd try shooting my way out, mix things up a little.

How did you get to the chopper, Billy?
I used a Master Chief Escape Plan.

by King Ceri February 26, 2011

Master Chief

Playing Halo, getting a blowjob, while smoking a blunt.

Dude, last night my girlfriend surprised me with a Master Chief.

by M3TALxSLUG August 23, 2012

master chief em

1. A slang term for playing halo

2. Another way of saying you want to smoke weed

Billy: Aye nigga, you wanna go master chief em?

by H4x0rPwnz0r March 18, 2008