• noun a North Vietnamese or any Oriental person. A derogatory term widely used by American soldiers in the Vietnam War, but originating much earlier, probably in the Filipino uprising of 1899 in which US troops referred to Filipinos as ‘gugus’, from a native word meaning tutelary spirit. Coincidentally, kuk is a Korean word-ending meaning person, and gook was also heard in the Korean conflict.
  • noun an alternative spelling of guck