BBC has historically been used to describe an African man's large penis. However, we believe that this term is discriminatory, as it defines men of African descent as having "black" skin - a misnomer which has widely been debunked in the scientific community. Many people are fully aware that the pigment of African skin is in fact brown.
By changing the acronym to stand for "Big Brown Cock," men of African descent will no longer be labeled by an incorrect and outdated adjective. Furthermore, the acronym will be expanded to include men of Hispanic, Indian, and Middle Eastern descent, many of whom have large cocks of their own. That's a win-win in our book.