ethnocentric vs flag-waving

ethnocentric

adj
  • Of or pertaining to ethnocentrism. 

flag-waving

noun
  • Highly vocal and visible support given to a cause. 

  • Undesirable horizontal skewing of frames in a video signal. 

How often have the words ethnocentric and flag-waving occurred in a corpus of books? (source: Google Ngram Viewer )