The meaning of blah is silly or pretentious chatter or nonsense. How to use blah in a sentence. See examples of blah used in a sentence.

Whether you’re a teacher or a learner, vocabulary. com can put you or your class on the path to systematic vocabulary improvement. Not very good, special, or interesting: Not feeling much interest, energy, or excitement…. Learn more. Blah is usually repeated to suggest that what someone is saying is unimportant or boring. He got tired of hearing his mother tell him to brush his teeth, clean his room, blah, blah, blah.

Blah is usually repeated to suggest that what someone is saying is unimportant or boring. He got tired of hearing his mother tell him to brush his teeth, clean his room, blah, blah, blah.