It could be, Lex, but I dont know. I remember seeing on TV, a long time ago, some comedian who was impersonating Elvis impersonators, almost turning them into creatures of their own, a species, with exaggerated appearances and habits. He called them 'Elv-eye', but I dont think he invented the term. Since then, I have on rare occasions heard people use the term in conversation, and seen both 'Elvi' and 'Elvii' on the internet. It may be a term used in Vegas where Elvis impersonators are common.
'Greek had to be simplified, and Latin had to be replaced with Italian, because we barbarians stole so many Greek and Latin words.'