bleah vs blech

bleah

intj
  • Expresses negative feeling. The quality of the emotion expressed is more negative than that of blah and has a slight feeling of disgust, verging on nausea. 

blech

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

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

verb
  • To have the vomiting reflex triggered. 

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