/ Dictionary / Index B blah-blah-blah: Meaning and Definition of Find definitions for: blah-blah-blah Pronunciation: (blä'blä'blä'), [key] — n. Slang. meaningless chatter; idle gossip: the blah-blah-blah of gossip columnists. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. blah blain Related Content Daily Word Quiz: fabricate Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language