blah vs boring

blah

adj
  • Dull; uninteresting; insipid. 

  • Low in spirit or health; down. 

verb
  • To utter idle, meaningless talk. 

noun
  • (in plural, the blahs) A general or ambiguous feeling of discomfort, dissatisfaction, uneasiness, boredom, mild depression, etc. 

  • Nonsense; drivel; idle, meaningless talk. 

intj
  • An expression of mild frustration. 

  • Representing the sound of vomiting. 

  • Imitative of idle, meaningless talk; used sometimes in a slightly derogatory manner to mock or downplay another's words, or to show disinterest in a diatribe, rant, instructions, unsolicited advice, parenting, etc. Also used when recalling and retelling another's words, as a substitute for the portions of the speech deemed irrelevant. 

boring

adj
  • Suffering from boredom; mildly annoyed and restless through having nothing to do. 

  • Capable of penetrating; piercing. 

  • Used, designed to be used, or able to drill holes. 

  • Causing boredom or tiredness; making you to feel tired and impatient. 

noun
  • Fragment thrown up when something is bored or drilled. 

  • A pit or hole which has been bored. 

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