or Chiba, Cheba, Chiva. The definition of this word depends upon the population, geography, and even the social strata of where it is spoken. On the streets of downtown Los Angeles "Cheeba" is synonomous with black tar Heroin.
During a stroll down San Pedro blvd between 4th & 8th street in downtown LA (or in that general area) one will likely hear passers by mumble words like "Cheeba" or "Cabby." These people are either selling or pursuing Heroin (known as "Cheeba") or Crack Cocaine (known as "Cabby").