The process of being impeded from your goal by a person of African-American Descent
"If im late to class one more time because i get blackblocked im gonna bust some heads!"
by Chrion December 22, 2011
The act of being impeded in your routine travels by a person of African-American descent.
"I was walking up the stairs just trying to go to class and got fucking blackblocked!"
by JeffyBforizzle December 22, 2011