Term used among some IT folks to refer to computers with a freshly installed operating system. The term greenfield references the default desktop wallpaper on a computer installed with Windows XP. The wallpaper shows a nice green field.

A "non-greenfield" computer refers to a used computer which has been in use for a while where the user may have made changes to it, additional software, drivers, etc have been installed
This laptop was totally greenfield yesterday! Who's the numbnut who installed the entire stupid HP Printer software suite

This software can be applied to a non-greenfield computer, i.e. we don't have to start from scratch
by RESguru October 14, 2009
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A field that is most likely green. And is one of the sketchiest locations known to man, woman, boy, girl, and home to every crackhead, punk-like druggie, old person, random group of kids that stand in a circle on a street corner staring anybody who looks normal passing by, dirty fat guys that sit on benches and tell every female that they smell good and he would love to show her a good time, pedefiles, necrophiliacs, pedephiliacs, serial killers ( no doubt down to middle school age), the combinations of everything above, and of course the charming small town look that attracts innocent vulnerable rich kids from nearby boarding schools. And everyone that lives here knows this.
"We went to Greenfield on Saturday because we were board, and found a little girl making out with a balding man on the DDR machine in the arcade."

"The old television program 'Scariest places on Earth' almost showed the season finale in Greenfield, but changed it to Neverland Ranch after realizing the extreme danger held in the small town."
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A small suburb of Indianapolis, famous for James Whitcomb Riley, Jaycie Phelps (Olympian) and Corn. Made up of mostly farmers, Super Walmart and white kids.
"Who's down for hitting up Indy? Greenfield sucks."
by ElleROCKS August 21, 2008
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Hippie douche bag clothing and pipe store on the east side of Milwaukee. Owned and operated by a cast of losers. They sell over priced trinkets made by poor people in foreign countries, while getting trashed and acting "American".
That 45 year old guy from Greenfields lies about being Vegan to hit on chicks half his age.
by Red3Blue5 June 23, 2009
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A small town on the outskirts of Indianapolis. Considered to be the WORST place to live, with absolutely nothing to do, the most terrible school system, and filled with white people, who hate African-Americans, yet attempt to act Black themselves. Also known for its extensive population of wiggers and uneducated, inbred, wannabe thugs. Do not ever consider moving here. Im serious. No really, just stay out of Indiana as a whole. Or the US... try Canada.
Person1: I live in Greenfield.

Person2: Sorry to hear that..
by CC02 January 16, 2010
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Greenfield is a small town in Indiana, east of Indianapolis. Filled with farmers and people trying to think theyre black, when they hate black people. Dont ever live here....trust me
"Yo, G. Why dat N***** here? Damn, lets go rob some corn in that field next to the Greenfield Bank."
by Alford December 9, 2007
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one who tends to be sexually attracted to large football players ((but secretly feels the need to express herself sexually with shrubbery, especially pine trees))
person one: " woah shes such a greenfield"
person two: "yeah, i saw her in the back yard yesterday, she liked our new landscaping"
by sally johnsen October 1, 2006
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