by Just Shut Up March 8, 2009
A Kick-Ass marine from the future. He's so bad-ass that he killed whole fucking race of aliens and then went home to nail his artifical bitch. He's so bad-ass that when he takes off his Helmet it's Chuck Norris. Nuf Said.
by Duh Boi February 19, 2009
John, or Master Chief Petty Officer 3rd Class. (Spartan-117) is the main protagonist of the popular video game, Halo. he has many augmentations including, hight damage reduction, sight, and speed.
by Chris000 July 17, 2006
1. The main character of the first 3 halo games (Halo 1, Halo 2, and Halo 3, respectively). He is an advenced supersoldier, comonly reffered to as a Spartan. Chief's full name is Master Chief Petty Officer John-117.
2. Commonly reffered to as Mastur Ch33f, Master Chief is the parter of The Arbiter (or as Ch33f says, Arbitur). All that is known of him is that He r guy hoo gun t33ch u l3ss0n.
2. Commonly reffered to as Mastur Ch33f, Master Chief is the parter of The Arbiter (or as Ch33f says, Arbitur). All that is known of him is that He r guy hoo gun t33ch u l3ss0n.
by Nate Dizzle Fo Rizzle My Nizzl March 19, 2010
by Ecksbawks September 18, 2009
The most amazing soldier in all of history. As a Spartan II, he was trained to be the best soldier ever. He has saved thousands of galaxies and planets, and is definitely better than Spartacus, pie, the muffin man, and cute puppies. Do not anger his epicness.
Master Chief: Hey ladies, I just got back from saving the universe.
Ladies: OMFG!!!!! SIGN OUR BODIES IN PERMANENT MARKER!!!!!!!!
Ladies: OMFG!!!!! SIGN OUR BODIES IN PERMANENT MARKER!!!!!!!!
by The God of Halo 4 December 27, 2012
The most amazing fuckin' war hero EVER. He completely pwned a whole alien race on a ring planet and can run fast. He also wears some pretty fuckin sexxxy armor. He is the equal to 1337, Pwned, Owned, and anything else in that category.
Geek 1:"Yo (insert name here) Master Chief completely pwnz.
Geek 2(the one who somehow SPEAKS in 1337):"i kn0, h3 i5 p2377y 4w350m3."
2 guys fighting over first player in Halo 3.
Dude 1:"I wanna pwn as Master Chief."
Dude 2:"well im sure as shit not bein arby, he's a gay alien. Im bein master chief"
Dude 1:(while pucnching dude 2 in the face)"fuck u im bein Master Chief. And y shud u be, u didnt even capitalize his name in your quote."
Geek 2(the one who somehow SPEAKS in 1337):"i kn0, h3 i5 p2377y 4w350m3."
2 guys fighting over first player in Halo 3.
Dude 1:"I wanna pwn as Master Chief."
Dude 2:"well im sure as shit not bein arby, he's a gay alien. Im bein master chief"
Dude 1:(while pucnching dude 2 in the face)"fuck u im bein Master Chief. And y shud u be, u didnt even capitalize his name in your quote."
by flamingicicle April 29, 2009