Rodomontade
Rodomontade , noun
[French, from Italian rodomontana. See Rodomont, n.]
Vain boasting; empty bluster or vaunting; rant.
I could show that the rodomontades of Almanzor are neither so irrational nor impossible.
Rodomontade , intransitive verb
To boast; to brag; to bluster; to rant.