Definition of Orang Ulu in US English:

Orang Ulu

(also Orang Hulu, Orang-ulu)

noun

  • A member of any of various peoples inhabiting upriver, interior regions of Malaysia or Sumatra.

Origin

Late 19th century. From Malay orang (h)ulu from orang person, people + (h)ulu up-river land, hinterland.