What the hell is a Savonarola?

Now who are the elitists using a word like that? A conservative or merely a commentator perhaps "who’s been mugged by reality" that I'd still never heard of went after both Digby and Krugman today labelling them as the "Revenge Wing of the Democratic Party". Nice reply by Digby that makes his original post all the better. Air it all out! As a bonus for blogging today I learned what "Savonarolas" appears to reference. Peace ... or War!