pht vs ugh

pht

intj
  • Used to signify mild annoyance or disagreement. 

ugh

intj
  • Used to express repugnance, disgust, or annoyance. 

  • Used to express inarticulate vocalisations, such as used by a caveman. 

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