Noun: A futuristic male or female who wears goggles, has unnatural colored hair, hangs out in small groups or alone and usually rides a hover skateboard.

Adj: To describe a person or place as "Neff" means to describe it as being very vividly colored with neon lights and/or very futuristic.
Noun: There are many Neffs that live in that area, they are always riding those hoverboards around.

Adj: The Neff City of Dysnomia, is home to extravagant nightlife and brightly colored streets.
by TunakLfie June 23, 2010
A "Dickey Word" of complex origin.

It Branches from the root word Neffertiti. Meaning a person of physical or mental disability.
Tina Demps is a Neff.

Hey ma is it just me or is that a Neff licking the sofa.
by steveclaiborne(aka.ma) September 03, 2010
A Creature known to be seen in ohio, it is short, brown hair, Some say resemble's a "Ragedy Ann Doll". It is liked by no other creature. From Certain Views it may look to have features of a baby bird in the face.
"Look at that dirty Neff!"
by Bakatu September 07, 2009
a straight male who hangs out with all the hot girls but never gets anything from any of them (often refered to as the bestfriend)
situation 1:

guy 1- hey dude im goin to the movies with a few girls tonight...

guy 2- nice man, yougonna get any?

guy 1- probibly not

guy 2- dude dont be such a neff

situation 2:

chick 1: im thinking about going out with tyler

chick 2: ew no, hes just a neff!
by nathaniel bangem March 26, 2009
Verb

To Neff (eg Neffing)
Neffer (one who neffs)

To neff is to post uselessly in order to increase one's post count in an online forum.
by airencracken June 04, 2006
Verb

To Neff (eg Neffing)
Neffer (one who neffs)

To neff is to post uselessly in order to increase one's post count in an online forum.
Someguy: ...posts funny story about his girlfriend...
Neffer: lol!!

Bumps are a form of neffing quite often.

Also known as postcount++
by airencracken June 04, 2006
THE SOUND A HOMOSEXUAL MAKES WHEN EJACULATING INTO ANOTHER MAN'S ASS USUALLY FOLLOWED BY A SMILE WITH HIS TONGUE OUT
NEFF IT FEELS SO GOOD TO CUM IN YOUR ASS
by BALLS MAHONEY October 08, 2012

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