blahnoun/blɑː/

• 1

  informalNonsense; drivel; idle, meaningless talk.

• 2

  informalA general or ambiguous feeling of discomfort, dissatisfaction, uneasiness, boredom, mild depression, etc.

• 3

  derogatoryinformalA fool, an idiot.

blahadj/blɑː/

• 1

  informalDull; uninteresting; insipid.

  • Well, the new restaurant seems nice, but their menu is a little blah.
  • He was struck by how much pleasure they seemed to take in their daytime lives, how blah their night work was by contrast, how altogether meaningless; […]
• 2

  informalLow in spirit or health; down.

  • I decided to go exercise rather than sit around all day feeling blah.

blahintj/blɑː/

• 1

  An expression of mild frustration.

  • Blah! Why can't I get this computer to work!
• 2

  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.

  • Yeah, yeah, blah blah blah, Mom, you said this all yesterday.
  • And then he was like, "Oh, my brother's an Internet millionaire, blah blah blah." Like I care!
• 3

  Representing the sound of vomiting.

blahverb/blɑː/

• 1

  To utter idle, meaningless talk.

  • Ooh, I feel so guilty, I've got far too much money — […] So give it away, endow a charitable foundation, burn it, but stop blahing on about it […]
  • Someone else said to me: “If you’re writing something again, don’t blah on about winning elections; it really offends them.”