one shot 

Term, often used in Halo, to identify an opponant in which one shot to the head with most weapons (Battle Rifle, Magnum, Carbine) will kill said opponant. In other words, the player has no shield.
Commonly used in serious MLG games, this term is often combined with the location of the player.
The purpose of using this term is to request assistance from a nearby teammate in killing the opponant, because in most cases the player identifying said opponant would be unable to do so.
It is important to remember when using this term in-game that it is only effective when paired with a specific location of the player.

"He's one shot in BR1!"
or
"One shot, BR1!"

one shot by Enzo N20 June 10, 2008

One of dem ones! 

Meaning when you chat to someeone and they either pretend to know what your going on about or crack da same jokes MUCH MORE THAN TWICE AND CERTAINLY MORE THAN 3 TIMES!or when they dont get the joke at all and you have to explain bare times to the extend of when it just aint funny or when they say da most random shit you have ever heard in your life! you gotta make the sign of the cross across there head and shoulders and say, man its one of dem ones, like ya kinda feel sorry for em. this ones especially for my friend Heidalo if your out there watching this look at me and say its one of dem ones peace and love (yea thats one of hers to and go and suck u mudda dry-but thats anuva story!

kc:why did the chicken cross the road?
highd:pardon?
kc:why did the chicken cross the road?
highd:r u taliking to me?
kc:yes why did it cross the road?
highd:explain that again plz?

One of dem ones! by kc January 17, 2005

one for one 

In paintball, when a player on one team and a player on the other team mark (shoot) each other at the same time, therfore resulting in a "one for one", one player is eliminated with another player from the opposing team.

Larry ran to bunker Steve and Steve shot Larry as Larry shot Steve. The ref couldn't tell who shot first, so he called a one for one.

one for one by Kyle Taylor May 24, 2007

one eyed heat seeking moisture missile 

1. a penis, or cock if you will

Man, that little slutty bar chick over there needs my one eyed heat seeking moisture missile.

one eyed heat seeking moisture missile by Bud E Love May 14, 2003

one off 

A quick (often anonymous) one time sexual act with another of the same or opposite sex which ends in climax.

Dude, I can't believe that had a one off with that cop to keep from getting a ticket.

Damn, you really had a one off with that hot soccer MILF behind the beer stand?

one off by Big NYC Jay June 24, 2008

One Eyed Bandit 

A type of live action gambling that can be undertaken in Thailand. First of all the gambler must select three Thai hookers and take them back to his room. The gambler then asks them to reveal their genitals, one by one. Like with a one armed bandit (English word for slot machine), the way to win is to get three cherries in a row. Any less than three cherries and you're BUST

"I wish they had some one armed bandit machines out here."

"We could just play one eyed bandit?"

"Hmm, yeah. Or Thai roulette maybe?"

"Either or man, I just need to unload quickly before my balls get any heavier. I feel like I'm lugging around a couple of coconuts in a 50g peanut bag."

One Eyed Bandit by H.S. Willsy August 26, 2011

ONE BIG FAT MOTHER FUCKING PIMPLE 

A Pimple That Is So Fucking Huge It Takes 10 Fucking Poeple To Pop That Mother Fucker

Holy Shit Carl That Is One Big Fat Mother Fucking Pimple

ONE BIG FAT MOTHER FUCKING PIMPLE by Justin Casuccio July 22, 2006