1. God's greatest gift to mankind.
2. The best First-Person Shooter ever created.
Hey, dude, have you heard about that new game? It's so Halo.
by Photon Blade November 15, 2003
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When combined with beer, hours of Halo can result in substantial weight gain.
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(i could not find a definition older than 2012) Halo is a popular first person shooter making it's debut in 2001 for the original xbox
Like star wars, it is filled with unhappy retards who are ungrateful with anything they add to the game, these are the kind of people who want a more classic look to halo, but yet they bitch and complain about the graphics on the upcoming release "Halo: Infinite"
As for the games, in 2010 former halo developer Bungie left halo after 9 years to work on their upcoming title Destiny, which left halo with a new developer 343, they are controversial and are regarded as "ruining the artstyle"
I do agree tat they look nothing like the former developer, 343's games are pretty fun too.

It is too much to cover in one Urban Dictionary definition so read it on wikipedia or something idk
You wanna play Halo?
No bro, fuck the plasma pistol
by Fuckshitassdick November 26, 2020
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When having sex with a girl on her period (with out a condom) and she has left you a red ring around your penis.
"Dude I'm totally going to heaven.

"Haha, uhh why is that?"

"Because I already have my red wings and my halo."

"Oh god, dude that's sick."
by Nugeamzaidwhat February 7, 2015
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The greatest video game series in history. It holds fantastic game play and an incredible backstory that few know and appreciate.
Halo fan: “Hey, have you ever played halo 3?”
Non Halo fan: “Nah, it seems too nerdy.”

Halo fan: “YOU WILL SUFFER FOR YOUR INSOLENCE, YOU WILL BURN AT MY HAND!”
by Death personified December 21, 2020
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A beautiful girl with an aura that is glorious and angelic, a true Goddess
Person#1: Wow! That’s the most beautiful girl I’ve ever seen! What’s her name?
Person#2: Halo
Person#1: No wonder
by Renee Wroten November 13, 2019
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Halo is a cool person. The fact that she says uh is funny. Lol. She turns up to GM19 streams too!
GM19: Halo welcome back to the stream
by Allzza August 19, 2021
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