Greenhead 

A person who is an environmentalist.
One who respects nature.
A conservationalist.

Dude, look. he's digging in the trash..

No he's just pulling out aluminum cans, he's such a greenhead.

Greenhead by Greenhead Eddie February 1, 2009

greenhead 

slang term for a mallard drake

guy 1: how'd you guys do today
guy 2: we shot two limits of greenheads
guy 1: holy shit you guys whacked 'em and stacked 'em

greenhead by Redneck1989 February 23, 2008

Greenhead 

The worst pest on the face of the Earth. Looks like a horsefly, buzzes like a bee, bites like a f***ing shark. Local mostly to marshes and swampy areas on the East Coast, it's a rather bland looking little bugger that bites you, spills your blood, then mashes its head into the open wound and spreads its (nonfatal-but-painful) poison all over it. The wound hurts like hell and bleeds a lot.

And there are a lot of them.

Tourist: "Look, a mosquito!"
Local: "Pffft..."
Tourist: "Look, a wasp!"
Local: "Pfft."
Tourist: "Is that a horsefly?"
Local: "GREENHEAD! GET UNDER THE F***ING WATER!"

Greenhead by CapeLocal August 27, 2013

Greenhead 

"head" or blowjob given by a girl that
1: never given it before.or
2: given it before but lacks experience.
3: blow job in the duckblind.

That slam-piece i brought home from the bar gave me some Greenhead. But shes a quick learner.

Greenhead by Instagator July 24, 2014

Greenhead 

1. A slang term for a greedy person or someone obsessed with money, particularly those involved in business and entrepreneurship who are thought of as greedy and lacking morals. They are called this because they always have money on their minds.

2. Also a term for an environmentalist or nature lover, they are also called Tree Huggers

1. The Greenhead on the news argued against Health Care reform on the basis of profit loss, even though Health Care profits are extremely high, so many people and their kids are without coverage and many diagnosed with pre-existing conditions can't get coverage and suffer severe illness or even death.

2. The Greenhead didn't want the beautfiful trees cut down for a stupid bar built a few blocks away from another bar

Greenhead by Spikehog40 August 1, 2011

Greenhead 

A freaky person who gets all up in people’s business when they don’t want them to. This person is horrible. NEVER TRUST A GREENHEAD

Hey Greenhead

Don’t be so mean to me I’m not a Greenhead!!

Greenhead by xXTrueBitchXx April 27, 2019

Greenhead 

Synonym for pothead, but more extreme. Used for people that are on the precipice of greening out.

Person 1: You're a greenhead, dude. You smoke weed like every damn day.
Person 2: That's just the way of the green, man.

Greenhead by kaidrilled December 5, 2022