Taking a good hit out of a bowl when there is only resin in it.
"Dude I was totally neffing that bowl."

"Hey man, could I neff that bowl?"

by tippy August 15, 2007
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The act of making plans with someone then not fulfilling the plans you made.
Person 1:Dude are we gonna skate on Friday?
Person 2: Yeah man I'm down anytime!!

-_-_ Friday_-_-
Person 1: Hey man what time are you coming?
Person 2: Dude I can't go
Person 1: ARE YOU SERIOUSLY NEFFING ME RIGHT NOW?? FFFFFFFFFUUUUUUUUUUUUUUU...
by Skate-o-Rama January 19, 2011
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Created in the Anandtech forums, it was a member who posted useless crap to increase his post count. Hence, the term eventually branched out in to other forums and became a popular term among forum goers. Lifers are usually a harmless bunch, not as vicious as trolls. All they care about is the postcount..
You're such a nef.
Stop neffing your lifer.
by prop August 19, 2004
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All these other definitions are nef.
No cap.
by Bigthang June 21, 2019
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To be made a fool of; To make a fool of; To confound or prove wrong; embarrasing someone
also Total and undeniable dominance of a person, group of people or situation as to make them/it akin to ones bitch.
Dude! you just got Neffed up the A! or
You were really neffed when you walked in on your girlfriend cheating on you.
by alex neff December 07, 2007
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short for "nephews", this word is commonly used to describe your close friends or relatives in the hood. This word is similar to the word "homies", but is used in more serious situations. Not to mention this word can also be used in place of "swear to god"
"Nefs I ain wit that breezy takin my bank rolls"
or
"I gat nefs in this hood that will knuck if you talk shit"
by ziggy ohh February 25, 2009
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Being VERY annoying by posting useless or stupid coments to a forum.
reminding everyone how great your computer is every day.
by CorvetteZ0606 June 07, 2003
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