What is the meaning of Blustering?

A noisy blowing, as of a blast of wind.

Swaggering; braggartry; noisy pretension.

Engaged in or involving the process of blustering, speaking or protesting loudly.

Pompous or arrogant in one's speech or bearing.

Very windy; (of wind) blowing very strongly, blustery.

present participle and gerund of bluster

Source: wiktionary.org