ay vs yass

ay

intj
  • Ah! alas! 

  • All right (inter); hooray (inter); cool (inter). 

  • New Zealand spelling of eh (question tag) 

noun
  • The name of the Latin-script letter A. 

yass

intj
  • A strong expression of excitement or admiration. 

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