Self-fulfilling Vocabulary

Rhodomontade, noun and adj.
 a. A vainglorious brag or boast; an extravagantly boastful, arrogant, or bombastic speech or piece of writing; †an arrogant act (obs.).


Amphiboly, noun. 
 1. Ambiguous discourse; a sentence which may be construed in two distinct senses; a quibble. (See amphibology n., which is the earlier and more popular word.)
2. A figure of speech: Ambiguity arising from the uncertain construction of a sentence or clause, of which the individual words are unequivocal: thus distinguished by logicians from equivocation, though in popular use the two are confused.

“though in popular use the two are confused”