The Word of the Year machine is running full speed with a gazillion WOTYs decided, declared and decreed. Even Safire did one yesterday. He starts out by condemned "concocted words" like hypermiling and then endorses frugalista, which is probably just as concocted in whatever particular sense he means.
That said, frugalista rolls off the tongue nicely, and I'd be happy if it caught on, as few of these creatures ever do. Folks, ease up: Nothing matters until the American Dialect Society meets and decides. They are the arbiters of this.
Maybe I'll finally goad one of the minions into nominating peevologist from the floor at ADS this year.