gook vs semifluid

gook

noun
  • A dull or hapless person. 

  • A person of (South) East Asian descent, especially a Vietnamese, Filipino, Chinese, Japanese or Korean person. 

  • Grime or mud. 

  • A Vietnamese insurgent in the Vietnam War, particularly a member of the Vietcong. 

semifluid

adj
  • Having properties intermediate between liquids and solids 

noun
  • Any substance with properties intermediate between those of a solid and a liquid. 

How often have the words gook and semifluid occurred in a corpus of books? (source: Google Ngram Viewer )