Black-up

the traffic caused by a group of African Americans blocking the hall and preventing Caucasian students from moving to their next class.

Tom: Dude, why arent we moving?????
Andrew: Man this is the Math hall. This is probably the black-up from all those black guys who walk slowly.

Black-up by FlockaFlocka12 February 22, 2011

Black-Up

An act of aggression that occurs "when fools need a beating, and you call your homies, and put in some work."

If you don't get yo' hands off my bitch, I'm callin' for black-up.

Black-Up by Rihanna had it coming January 24, 2011

Black-up

An emergency friend of color when yours is M.I.A.

Guy 1: ”AJ is out of town with his wife, I really need a buddy to go to this club in the hood.”

Guy 2: "Scary ass, if you really need it, I got you bro, I'll be your black-up."

Black-up by WarWaterUGood4 July 3, 2025

black up 

African American back up

i was bein' mugged, 'till my black up arrived

black up by Aram October 11, 2007

black up 

To make oneself black in nature even if they have white skin

I need to black up before my 100m sprint.

black up by black_up36287687326895327092 May 3, 2013

black up 

To light up and smoke herb made for man
(and woman too!);Jamaican.

Hey mon,let's go to the garage and black
up with some sugga shack. Seen?

black up by Scroter Anderskin May 13, 2005

Black up 

To get high.
Generally off marijuana smoke.

'hey man what you doin after this?'

'yo ma breda i tink ima go home n black up some more you kno?''

Black up by Lil West February 3, 2010