Nigger Boy John
Term first given by Martin Luther King, Jr. in his work "Letter From a Birmingham Jail"
King explains that in his time, blacks were often called "Nigger" as their first name, "Boy" as their middle name, and "John" as their last name. Hence, NBJ.
Brasil: Hey, there goes a black kid with the name John. He fits perfectly for the term NBJ.
ArmoHater: You're right! Hey, NBJ! NBJ!
John: *runs away crying like un brazo*
I just got a sexy NBJ from my girlfriend on her bed.