Sarcasm: A cutting remark intended to express contempt or ridicule. From late Greek sarkasmos: a sneer, jest, taunt, or mockery. Its original meaning was “tear flesh”; its root is sarco-, a Latinized form of a Greek root meaning “flesh.” Compare sarcophagus (limestone used for coffins; literally “flesh-eating”) and sarcoma (a fleshy tumor).
Sarcasm was defined and debated last week after the Republican presidential nominee – who had insisted multiple times at an August 10 rally in Florida, and in an August 11 radio interview with Hugh Hewitt, that President Obama is “the founder” of ISIS and Hillary Clinton the group’s “co-founder” or, alternately, “most valuable player” – shout-tweeted that the remarks were “sarcasm.”
Ratings challenged @CNN reports so seriously that I call President Obama (and Clinton) "the founder" of ISIS, & MVP. THEY DON'T GET SARCASM?— Donald J. Trump (@realDonaldTrump) August 12, 2016