LOLOLOL. In 1972, my husband was working overseas while our house was up for sale in Piedmont, a neighborhood adjacent to Oakland, CA. I had a part time job and 4 small kids and three household helpers — a cleaning lady, a yard man, and a team of painters — who were helping me keep my house neat and tidy while it was for sale. All three were black and all were very well spoken (although the painter was illiterate — brought his wife along to draw up painting contracts on binder paper). One day they all happened to show up on the same day at the same time. Amazingly, they all happened to know each other.
I heard the hooting and hollering on the front walk and rushed to the window to see what was happening. They were greeting each other in a language I had never heard before and couldn’t understand. Yet, whenever they spoke to me it was in excellent English. This was the first time I had ever encountered that phenom. I suppose it was early Ebonics.