Definitions by Caroleame

Nigger-up 

To gang up; as if to fight unfairly. When a group of people maliciously fight another with the advantage of more people.
Can refer to either gender and any race.

Just because she called you a whore doesn't mean you had the right to nigger-up on her with your trashy friends and beat the hell out of her.

Nigger-up by Caroleame October 26, 2012