Last week, I chronicled something of the bafflement that ensued as I was confronted with the weirdly malleable term "neo-Catholic." Judging from the combox discussion that followed, many readers share the tremendous confusion surrounding the term. Did it denote converts or those who loathe converts? Was it code for "neocon" or for non-neocon? Was it meant to denote a political or theological group? Was it a floor cleaner or a dessert topping? So many questions! In response to my bafflement over the meaning of the term, one of my readers finally replied: In the past, when...