Nig It Up 

To act in a manner that embodies all that is humanly wrong. Or to engage in activities that might compromise a normal person's integrity. These "nigger-like" activities include, but are not limited to: annoying everyone, stealing everything in sight, spontaneously "rapping", walking absurdly slow while other people must wait, littering McDonald's wrappers, guilt tripping others into giving you things you didn't work for

Person 1: Who the hell ate my sub and drank my beers?

Person 2: It was blake, he's been broke and has to Nig It Up for a while.

Blake: Huh, sorry man.

Person 1: God damnit you dipshit! Get a Job!

Nig It Up by BigGulp February 1, 2010

Nig It Up 

1.) A goodbye phrase which encourages, chilling out, taking care of one's self, staying black, and any other form of keeping it real.

A: Yo, I leave for Miami tomorrow.
B: Aight man, Nig It Up

Nig It Up by Steve Jordan May 15, 2006

nig it up 

To be amazing in athletic competition as to be an african american.

To own competition or to at least win in athletics.

(Being black is not necessary to "nig it up")

(Track Race) Quick! He's catching up! Nig it up!!

nig it up by champbronc2 April 6, 2007