Commonly used in coastal Georgia to describe marijuana that has no effects because of it's poor quality.
"Hey man, how was that dime you bought from Tony?"
"Fuckin' air, dude."
"Air?"
"It was like smoking nothing."
by QueDOGG May 22, 2010
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If you have to ask what air is, you're probably on Tumblr.
You: WHAT IS AIR
Stranger: Tumblr?!
by great-perhaps November 10, 2010
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Air has several definitions

1. Total blank, not even a glance or a sign of recognition.
2. Empty threats made by wastemen or fake rudeboys acting hard.
3. To get a good jump in basketball so one can perform a number of tricks like alleyoop or dunking.

1. - Boi I must be talkin to air
Try move dis chick last nite, only received air lyk.

2. Wasteman"U not what blud im gona get dat boi and run him tru wit my shank"
Real man "Blud u aint gona do sh*t, u chattin air"

3. You see that dunk he got mad air fam.
by s00fman December 10, 2005
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Hey, it's hot out. Let's put on the air.
by bmanlio July 15, 2006
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Aura, vibe, any frequency someone gives off
I tend to give off the air of someone who uses drugs. I think it has to do with the poncho I wear on weekends.
by Harry Setatestyz February 1, 2011
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O(squared) .. 22%oxygen 78%nitrogen.. simi-transparent gas found in the lower atmosphere. You breath it.
Alien: "Gah!, they have Air, this planet is totally uninhabitable"
by mad at the world February 28, 2003
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"Hey man your gay!"

"Stfu go suck an aire!"
by mohammaddalkhara December 13, 2009
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