blech vs pho

blech

verb
  • To have the vomiting reflex triggered. 

noun
  • A metal sheet used to cover stovetop burners on Shabbat to allow food to be kept warm without violating the prohibition against cooking. 

intj
  • An imitation of the sound of gagging, used to express disgust or disdain. 

pho

noun
  • A Vietnamese soup with a beef base, typically served with rice noodles and beef or chicken. 

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