What is "elvissey"

Elvissey (1993) is a Jack Womack science fiction novel, one of his Dryco series, set in a dystopian 2033 CE. This fictional universe is dominated by Dryco, a Machiavellian multinational corporation which pursues its plans for global domination of its world, amidst runaway climate change, unstable weather patterns and rising sea levels, which threaten to eventually inundate old New York (although DryCo has constructed a "New" New York on higher ground). It won a Philip K. Dick Award in its year of publication.