Just launched! Learn slang while watching funny vids: urbandictionary.tv
4. NF
An abbreviation of "Not funny", used primarily as internet slang.

Used first by Chris G. in a conversation with Eileen m. (bah)
"but i did help u get over that malaysian girl didnt i?"
"i guess."
"don't worry, after a couple one-nighters you'll be ok."
"wtf, i'm no slut!"
"haha, JK!"
"NF!"
1. NF
means "Not Frat"
That GDI is wearing cargos. That's NF.
2. NF
A more polite abbreviation of the deragatory term Nigger Faggot.
Sarah: Jesus this school is full of NFs.

Shannon: I know right!
3. nf
Now Following, a commonly used twitter hashtag
"#nf @twitter_username"
"About time. #nf @username This fellow is the shit."
5. nf
Not Funny
<noob> hey everyone look, i renamed the tubgirl pic and put it on my site.
<jaded fuxer> nf, cockbite.
by dapper Jun 5, 2003 share this add a video
6. NF
An abbreviation (non-factor) that describes a person that displays a behaviour that is below the norm of society. It can also be implicated to a person that shows unbelieveable stupidity in a certain situation. Coined by Ibrahim Mahamed Hadi/Somran Roy in Ottawa, On. Canada.
Example 1
A: That person looks like he just lost his job
B: That's an NF move...

Example 2
A: Yo man, i just failed a test that i have been studying for over a week straight
B: You NF
7. NF
abbriviation for the term NON-FACTOR. This term was coined by a teenager in Ottawa, Ontario,Canada. The word means that someone/something does not have any importance or significance in the field taht is being discussed.
For example, let's say someone is failing their classes, then they will be called a called a NF. Let's say some one spills coffee on their way to work. They will be called a NF. Lets say someone spends their time fixing their nails in class and not taking notes. They can be called a NF.