Every four years, right on time, it’s word of the week. Flinty. New Hampshire voters are flinty, have a “flinty reputation,” are “flinty live-free-or-die citizens,” “flinty mothers” and “flinty contrarians,” “flinty New Englanders” speaking with “flinty accents” and squinting with “flinty eyes” everywhere in the “flinty Granite State.”The adjective has shown up nearly 500 times in news stories the past couple of decades describing New Hampshire and its primary.