What does the word blustering mean?

Usage examples for blustering

  1. Overhead the clouds flew by at terrific speed, driven along by the blustering wind. – El Dorado by Baroness Orczy
  2. He could on occasion behave handsomely; but I can't learn that blustering, hilarious Doctor Rogerson ever refused his. – The House by the Church-Yard by J. Sheridan Le Fanu