Bluster
WordNet
noun
(1) A swaggering show of courage
(2) Vain and empty boasting
(3) A violent gusty wind
(4) Noisy confusion and turbulence
"He was awakened by the bluster of their preparations"
verb
(5) Act in an arrogant, overly self-assured, or conceited manner
(6) Show off
(7) Blow hard; be gusty, as of wind
"A southeaster blustered onshore"
"The flames blustered"