girn vs ribbit

girn

noun
  • A vocalization similar to a cat's purring. 

verb
  • To make elaborate unnatural and distorted faces as a form of amusement or in a girning competition. 

  • To whinge, moan, complain. 

  • To grimace; to snarl. 

ribbit

noun
  • The vocal sound made by a frog or toad. 

verb
  • To make the sound of a frog or toad. 

intj
  • The vocal sound made by a frog or toad. 

  • Used to anonymously and disrespectfully break silence, as in educational or ceremonial settings 

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