When black people either walk slowly or stand around in high-traffic areas in large groups, blocking others from reaching their destination. Walking through a roadblack could cause verbal or physical attacks. It is best to avoid such attacks by avoiding roadblacks all together.
Tom, slow down! Don't blow through that roadblack!

WHAT DA HELL?!?!? WHAT CHO PROBLEM?!?!? (punch, slap, biff)
by fartgeyser October 22, 2007
Get the Roadblack mug.
Being blocked in hallways/on sidewalks by a group or single black person walking extremely slow.
I was late for class because I was caught behind a roadblack.
by Darby022 July 19, 2010
Get the Roadblack mug.