In honour of Jef's Cartoon entry for the Rotary Cartoon Awards, my choice for a word worth espousing is dictionary dot com's Word of the Day for June 22, 2001 - "bloviate":
To discourse at length in a pompous or boastful manner.
The great thing about the word is that one is always using it ironically (intentionally or not). By definition, if you use the word "bloviate" in a discussion, no doubt you are in the middle of bloviation yourself. After all, people only use esoteric verbiage and discombobulating locutions in order to sound smarter than they really are.
I tend to find that I am more prone to bombastic oration rather than bloviation.