bluster

Short definition from Wiktionary

Noun

1. 1
   Pompous, officious talk.
2. 2
   A gust of wind.
3. 3
   Fitful noise and violence.

Verb

1. 1
   To speak or protest loudly.
2. 2
   To act or speak in an unduly threatening manner.
3. 3
   To blow in strong or sudden gusts (refers to winds).