argh vs om nom nom

argh

adj

  • timid; cowardly 

intj

  • Expressing annoyance, dismay, embarrassment or frustration. 

om nom nom

intj

  • The sound made while relishing food. 

noun

  • Tasty food. 

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