aka chiva, from Spanish for a female goat. On the East Coast, Chiba means marijuana. This is from Caribbean Spanish. On the West Coast and some parts of the Midwest, Chiba means heroin. The latter comes from the Mexican Spanish.
I took a trip to San Pancho San Francisco and asked a Mexican dude (who seemed to be a pharmaceutical consultant) for some Chiba. He came back with a balloon filled with black tar heroin. I said I want cheeeba papi, porque no meto con esta meirda manteca. He said that what I was looking for was mota. I said "Gracias manito" and he replied, "Orale vato."