The Collaborative International Dictionary of English v.0.48:

Rodomontade \Rod`o*mon*tade"\, v. i.
   To boast; to brag; to bluster; to rant.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Rodomontade \Rod`o*mon*tade"\, n. [F., fr. It. rodomontana. See
   Rodomont, n.]
   Vain boasting; empty bluster or vaunting; rant.
   [1913 Webster]

         I could show that the rodomontades of Almanzor are
         neither so irrational nor impossible.    --Dryden.
   [1913 Webster]

WordNet (r) 3.0 (2006):

rodomontade
    n 1: vain and empty boasting [syn: braggadocio, bluster,
         rodomontade, rhodomontade]