Nigz0r 

What you call a friend in IM, text message, or in regular conversation who has knowledge of leet speak, and uses it frequently. Can be used as a friendly topic ender or a profane interjection, both equally friendly. Also can be used against a third party who you think sucks and deserves to be called something that fits their idiotic behavior or disposition.

Bro 1: "aight nigz0r I'll talk to you then."
Bro 2: "peace braski."
OR
Idiot: "lololololol iz sooo kewl! iz a total pwnz0r! I camp your base and fuck men!"
Me: "Damn right you do!" -shoots in the face- "Nigz0r!!!"

Nigz0r by FoxCarnage November 27, 2009

Nigz0r 

A derogatory term used in 1337 speak. It is used when the sayer believes the victim is black (nigger) and a hacker (z0r) so they are calling them a nigger hacker

"That nigz0r r0x0r3d mez0r"

Nigz0r by Evan November 9, 2003

Nigl0r

A noobie nigger. A black person who is incapable of doing something in a good fashion

"STFU you niggl0r!!!!!!!11"

Nigl0r by Callum July 28, 2004

nigg0r

Derrog - The way hackers spell the derrogatory word, nigger. using the numeral 0 instead of the letter O.

Y r j00 being such @ n|gg0r?!

nigg0r by P Cross May 5, 2005