Source : Webster's Revised Unabridged Dictionary (1913)

Sambo \Sam"bo\, n. [Sp. zambo, sambo.]
   A colloquial or humorous appellation for a negro; sometimes,
   the offspring of a black person and a mulatto; a zambo.

Sambo \Sam"bo\, n. [Sp. zambo bandy-legged, the child of a negro
   and an Indian; prob. of African origin.]
   1. A negro; sometimes, the offspring of a black person and a
      mulatto. [Colloq. or Humorous]