Why this word is great
POPINJAY — [Noun] A vain, gaudy, and talkative person, defined by strutting ostentation and empty mimicry. From Middle English popinjay, from Anglo-Norman papegai and Old French papejai ("parrot"), from Old Occitan papagay, from Arabic بَبْغَاء (babḡāʔ, "parrot"), of imitative origin. Unlike a dandy, whose sin is a meticulous, artistic devotion to tailoring, or a coxcomb, whose hallmark is a profound and laughable foolishness, the popinjay is a creature of raucous, borrowed plumage and mindless, repetitive chatter. He is the politician rehearsing another's bon mot in a mirror, the iridescent waistcoat holding forth in the coffee-house, the meticulously plumed hat bobbing above a crowd—all bright surface and borrowed sound, a living testament to the profound human fear of being unremarked upon.