Pronunciation: (bla&thslash;'ur), [key]
foolish, voluble talk: His speech was full of the most amazing blather.
to talk or utter foolishly; blither; babble: The poor thing blathered for hours about the intricacies of his psyche. Also,blether.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.