FUBU is a slur used to describe Blacks in a derogatory way. As in the clothing line F.U.B.U., or known by African Americans as "For Us, By Us." Racially translated to "Farmers Used to Buy (or Beat) Us"
The word FUBU 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 FUBU, it is best to err on the side of caution and avoid using it in any situation.