kalibugan Sense 1 noun English. A person having parents of differing ethnic groups; a mestizo. Example sentence: Subanen. Si Tata', kalibugan, pu' gam"en, Bisaya', gina'en, tantu gupia Subaanen. English. Tata' is a mestizo, for her father is a Visayan, her mother pure Subanen. Sense 2 Grammar. Only occurs capitalized. English. A member of an ethnic group that speak a subdialect of Subanen or Subanon and who identity as Muslim.