Prapper is a slur used to describe Blacks in a derogatory way. A Gang known as the Bloods, say PRAAAAAP! sounding like a machine gun. It is used when 2 Bloods meet and greet.
The word Prapper is a racial slur that has been used historically to degrade and dehumanize blacks. The word is still used by some people for this purpose, and it is seen as offensive and hurtful to blacks. If you are unsure about whether or not it is appropriate to use the word Prapper, it is best to err on the side of caution and avoid using it in any situation.