blah blah blah vs yada yada yada

blah blah blah

intj
  • A put-down to silence someone who would otherwise not stop talking. 

  • A stand-in for trivial, obvious, or boring content. 

yada yada yada

phrase
  • blah blah blah. 

  • And so on; and so forth. 

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