fanfaronade
Empty, self-assertive boasting; an instance of such behaviour.
countable, uncountable
[…] the Gasconads of France, Rodomontads of Spain, Fanfaronads of Italy, and Bragadochio brags of all other countries, could no more astonish his invincible heart, then would the cheeping of a mouse a bear robbed of her whelps.
Loud, showy display, celebration or proclamation (of something), sometimes involving the playing of trumpets or other musical instruments.
countable, uncountable
With a fanfaronade of welcome they lowered their drawbridges
Where it comes from
From French fanfaronnade (“bragging, boasting”); other senses influenced by fanfare.
Adapted from the Wiktionary entry fanfaronade (CC BY-SA 4.0).