Green Collar has two definitions in todays world.
1. A job relating to warfare.
2. A job relating to environmentally friendly work
the first is more commonly used
1. Bill works for a PMC, therefore he is a green collar worker.

2. John serves in the Air Force, making him one of the green collar workers in the U.S.

3. Steve now works for EcoSafe, a company who makes environmentally safe light bulbs, and he joined the green collar ranks.
by Sam Harding April 24, 2008
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"There's another bottle blond. I bet her collars and cuffs don't match"
by Lord Iffy Boatrace February 13, 2003
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To be a white or blue-collared worker who feels trapped in the world of the other
Steve: "Brozay, why are you moving to the Poconos? The Wall Street lifestyle around here seems to suit you a lot better."
Dan: "Nah, not really. It's all show and airs and one-upmanship around here...I feel trans-collared, man. I'm basically a down to earth kind of guy trapped in a white-collared society."
by stockman09 September 24, 2008
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A Durnin Collar, often known simply "a Durnin", is the unfortunate scenario when the shirt collar subtely refuses to sit right. It is hard to fix, devilishly uncomfortable and worst of all- it gives the wearer the appearance of a sunflower. The Durnin sneaks up on even the best of us in many ways:

1. The simple Durnin occurs when the top button of a shirt is fastened, but the collar sticks out at an unfortunate angle, thus likening collar to the wings of a plane. Repairing the simple Durnin is, as the title suggests, simple, and requires the wearer to push the outside of the collar down whilst pulling the inside of the collar up, though extreme cases may require a button-down collar.
2. The wild Durnin is similar to the simple Durnin, the only difference being that the collar is un-fastened at the top button, giving the subject a more shamelessly hideous appearance. Unfortunately, the wild Durnin is far more difficult to correct than its simple counterpart, and one is often required to re-dress.
3. The parachute Durnin is the most offensive Durnin Collar available. Though technically un-related to the collar, it occurs when some of the material from the back of a shirt rises up the neck, and is trapped by the jacket, meaning that the subject has countless folds of material seeping through the gap between shirt and jacket, hence the title. There is however relief given in that the para-Durnin is simple to correct; it only requires a sharp tug from the bottom of the shirt.
"check the Durnin Collar on Obama tonight"

"dude, d'you think he's realised he's got a parachute Durnin?"
by collar observer October 29, 2009
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When a person flips up their shirt collar upwards. This created a new trend which can consist of not ONE, but TWO, THREE, FOUR, OR EVEN FIVE polo shirts with popped collars worn at the same time to complement each other's colors. Many times looks ridiculously stupid and gay. Most preps who wear abercrombie and shit like that prefer to "pop" their collar. Abercrombie and such prep brands promote the popped collar by advertising their polo shirts with turned collars.
"Damn i'm sweating, dude. And it's only 42 degrees!"

"That's cause you're wearing seven fucking shirts with the collars all popped up, you trend following bitch."
by Abner Crombie N. Fitch April 6, 2005
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Training tool akin to a citronella collar for barking dogs, but worn by humans. The human under behavior modification wears a collar with a small compartment filled with cum. When the unwanted behavior is exhibited the collar blasts a load of stale cum into his face.
After 3 weeks of wearing my cum collar I no longer stutter and have much softer skin
by Jack of Pricks January 8, 2014
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1. having to do with office workers

2. performed by people who work in offices
Thanks to computers, more than half of the work force was white-collar by the 1990s.
by The Return of Light Joker October 6, 2008
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