/ Dictionary / Index B blah: Meaning and Definition of Find definitions for: blah Pronunciation: (blä), [key] — Slang. Slang. —n. nonsense; rubbish: What they say is blah. a feeling of physical uneasiness, general discomfort, or mild depression; malaise: After the long weekend many workers had the Monday-morning blahs. —adj. insipid; dull; uninteresting. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: blah (Thesaurus) Blagoveshchensk blah-blah-blah Related Content Daily Word Quiz: charlatan Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language