B.O.S - (Pronounced same as Boss)
A term used within the Gangster Disciple Nation (GDN) and other "Folks" street gang to identify with one another or used a a entity to "stack" on. Usually the term is used to defend a thought or idea. It would be the equivalent to swearing to God or Swearing on someone's life. Also know as Brothers of the Same Struggle.
On tha Bos, if you pay me on Wednesday, Ima pop yo ass!