mmm vs om nom nom

mmm

intj

  • Used to represent an utterance that is muffled or spoken with a full mouth (also spelled "mmph"). 

  • Yes. 

  • An expression used to show thought or reflection 

  • An emotional expression of contentment 

om nom nom

intj

  • The sound made while relishing food. 

noun

  • Tasty food. 

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