*To smoke a cigar, cigarette, or even a joint of marijuana.
"Wanna go burn one down man?"
"Uh thanks but I don't do drugs. ^_^ "
by Dave September 10, 2004
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A military slang term that describes when two personnel are posted at a lookout or guard situation. One unit stays alert and awake watching for movement/activity (one up) while the other takes a nap or rests (one down). They alternate so as to be able to extend their alertness for a longer time. It is an unwritten rule that you must wake the resting person if you start to become tired yourself as the "One Up".
"We had 12 hours stuck on that LP/OP behind enemy lines so Smith and I decided to go One Up, One Down. I took Up first."
by Americ4nBulldog September 18, 2015
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A game, the object of the game is to figure out how to play.

you have 3 choices: 2 up, 1 up 1 down, or 2 down. what you are is dependent on your hands/arms for instance if you have both your hands in the air then you are 2 up

the point of the game once you figure out how to play it is to play with other people and change what you are as nonchalantly as possible
John: Want to play One Up, One Down?
Bob: Wtf is that?
John: c'mon just play
by The Jolly Ginger Giant July 24, 2010
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when you want to be cool and are asked the question of how you are doing, you can answer one up-one down, instead of the ubiquitous so-so
by Sexydimma March 19, 2015
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If you want to sound you can answer one up-one down instead of the ubiquitous so-so
by Sexydimma May 17, 2016
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When two males and a female participate in the act of copulation and one male's genitalia are in the mouth of the female and the other's genitalia are in either her buttocks or her vagina.
My friend and I wanted to have a threesome with a female from the workplace except we weren't comfortable with textbook double penetration so we decided to put one in the mouth and one down south.
by Jakovovich February 10, 2010
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to say deuces (goodbye) to someone and then flick then off (fuck you). Usually used when someone pisses you off or you don't want to talk to them anymore. (Yes it means you put two fingers up and then leave the middle one up.)
"why are you acting like a little bitch...that's why no one can stand you!"

"Man, two fingers up, one down"
by U.s.A. August 27, 2009
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