Snark is a popular word used for a particular sort of off-putting sarcasm. Snarkiness can manifest itself as adolescent cheap shots, snide condescension, or simple ad hominem patronizing — a sort of “I know you are, but what am I?” schoolyard name-calling. Its incessant use is typically connected with a peevishness born out of juvenile insecurity, and sometimes fed by an embarrassing envy. All politicians are snarky at times; but few obsessively so, given the wages of monotony and insecurity that the snark earns.
President Obama is well known both for ad hominem dismissals of his supposed enemies — everyone from Fox News to the Tea Party to Rush Limbaugh and Sean Hannity — and for his evocations of nefarious straw men who, he claims, if left unchecked, would uninsure the poor, pollute the environment, hurt the illegal immigrant, and wage perpetual war abroad. But Obama’s snarky putdowns and condescending afterthoughts are a particularly disturbing subset of these rhetorical devices, used by him in the grand world of diplomacy as well as in often petty domestic contexts.