If someone can see you are plainly sick with a cold and they ask how you are feeling and you rudely comment "never better," this is an example of sarcasm.
Detected a hint of sarcasm in his voice.
Sarcasm is the lowest form of wit.
Origin of sarcasm
- Late Latin sarcasmus from Greek sarkasmos from sarkazein to bite the lips in rage from sarx sark- flesh
From American Heritage Dictionary of the English Language, 5th Edition
- From Late Latin sarcasmus, from Ancient Greek ÏƒÎ±ÏÎºÎ±ÏƒÎ¼ÏŒÏ‚ (sarkasmos, “a sneer"), from ÏƒÎ±ÏÎºÎ¬Î¶ÎµÎ¹Î½ (sarkazein, “gnash the teeth (in anger), literally, to strip off the flesh"), from ÏƒÎ¬ÏÎ¾ (sarks, “flesh").