bleh vs who cares

bleh

intj
  • Used to reflect general indifference to a situation or topic. 

  • An expression of mild disgust, possible imitative of vomiting 

adj
  • Mildly uncomfortable; not good. 

who cares

phrase
  • A reply that diminishes the importance of another speaker's immediately preceding statement. 

  • A reply to an unimportant or irrelevant statement, indicating indifference on the part of the speaker. 

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