1) bright glowing ring above the head of religious figures
2)a game for xbox and later PC made by bungie; considered by some to be the best game available on xbox
3) military parachute jump (hi altitude, low opening)
master chief jumping from a plane with a ring above his head would satisfy all three
by sir PEACH June 15, 2004
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1. without this game most guys would spend most of their time masturbating
2. code word: group, all male, masturbating.
3. electronic circle jerk, multiguy mission.
1. Pedro, come over we're gonna play Halo.
--Okay I'll bring the tissues.
by Yessel January 18, 2005
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A game created by Bungie for the PC and Xbox. Contrary to popular belief, Master Chief does have a name. His name is "John." It is one of the best-selling games ever and has had a sequel to it. While the the third one has not come out at this time it in the process of being made. There are also plans for an RTS on the Xbox 360. Movie plans were made, then abruptly cancelled due to budget issues. A trilogy of books was also written about this series by a writer named Eric Nylund. They give many important details and a lot of background information.
Halo, play it with your friends.
by The Real Iggy October 26, 2006
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n. 1. GAME The best and most popular x-box game. Made by Bungie.
2. RELIGIOUS OBJECT a glowing ring of light surrounding Bible-era religious figures. 3. MILITARY A high altitude/low opening parachute jump, where a jumper exits the plane at around 30,000 feet and opens at around 1,000.
Let's go play Halo for 7 hours at a sleepover!

Your halos are glowing so brightly we won't need the lamps, that's very nice.

Richard Marcinko pulled a textbook HALO jump yesterday.
by Dev July 21, 2003
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HALO STANDS FOR:
HIGH ALTITUDE LOW OPENING
It is a difficult parachuting technique involving extended free fall(usually around 2 minutes at 120 knots) with the usuage of a breathing apparatus.
USUALLY USED TO INSERT SPECIAL FORCES SOLDIERS INTO DENIED OR HOSTILE TERRITORY.
AND, NO THE NAME FOR THIS DID NOT STEM FROM THE GAME, IT HAS BEEN AROUND LONGER THAN THE GAMER CREATERS HAVE BEEN ALIVE.
SGT. Martin braced himself in aniticipation for the treacherous HALO DIVE into his missions target area.
by Jamie Moorhouse April 2, 2008
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1.A mythical ring of gold or light that floats a few inches over an Angels head. Can be seen in the cartoon DBZ.

2.A large Metal ring in space, spanning 10,000KM in diameter and 22.3 KM thick. Was constructed by Forerunners to house the parasitic plague called the Flood. SPins to generate gravity.
1.Hey, is that a Halo on your head?

2."Were all that's left.Halo,it's finished" -Cortana
by Michael Angelo June 23, 2004
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Every morning there's a halo hanging from the corner of my girlfriend's four post bed. -- "Every Morning" by Sugar Ray
by hempick June 18, 2005
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