The Collaborative International Dictionary of English v.0.48:

Bluster \Blus"ter\, v. i. [imp. & p. p. Blustered; p. pr. &
   vb. n. Blustering.] [Allied to blast.]
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   1. To blow fitfully with violence and noise, as wind; to be
      windy and boisterous, as the weather.
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            And ever-threatening storms
            Of Chaos blustering round.            --Milton.
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   2. To talk with noisy violence; to swagger, as a turbulent or
      boasting person; to act in a noisy, tumultuous way; to
      play the bully; to storm; to rage.
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            Your ministerial directors blustered like tragic
            tyrants.                              --Burke.
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