Derogatory term used to describe half-breed Mexican-Native American women. Term can also be found in dialogue exchange between Jennifer Jones and Lionel Barrymore in the 1946 film, "Duel In the Sun".
1) L.B.: How'd they come to name you Pearl?
J.J.: I don't know, sir.
L.B.: They couldn't have had much eye for color, could they? (laughter) They might have better called you Pocahontas or Minnie-ha-ha. Ain't I right?
J.J.: I guess so.