Definition from Wiktionary, the free dictionary
snarker (plural snarkers)
- One who makes snide remarks.
2009 February 22, Walter Kirn, “Insult as Injury”, New York Times:
- Sarah Silverman escapes unscathed, while Penn Jillette, an avowed libertarian who entertains mostly in Las Vegas nowadays, and Sarah Palin , an avowed big-game hunter who’s safely tucked away up north somewhere, are portrayed as snarkers par excellence.