When the populace interjects conversation in erudite or esoteric vocabulary... shit...i just did it. Frivolous eloquence is the nice way of saying that someone's talking in words way too big or advanced to be understood by us common folk. They forget the purpose of words. It's not to soundfancy and above, but to communicate with others. And whats the point of talking big if no one will understand you?
scene cuts to a dim club with muscular tough guys playing pool; Plankton stands at the door
Felicitations, malefactors! I am endeavoring to misappropriate the formulary for the preparation of affordable comestibles! Who will join me!?
Its basically someone who is to quick to give doubt and allow people to get away with things such as giving them chanceeven after betrayal.
"Bob our Captain is showing signs of Frivolous Conscientiousness he gave his family money and they used him to gain benefit that may have been nice but it cost us"