witty language used to convey insults or scorn; "he used sarcasm to upset his opponent"; "irony is wasted on the stupid"; "Satire is a sort of glass, wherein beholders do generally discover everybody's face but their own"--Johathan Swift
A form of sneering criticism in which disapproval is often expressed as ironic praise. (Oddly enough, sarcastic remarks are often used between friends, perhaps as a somewhat perverse demonstration of the strength of the bond--only a good friend could say this without hurting the other's feelings, or at least without excessively damaging the relationship, since feelings are often hurt in spite of a close relationship. If you drop your lunch tray and a stranger says, "Well, that was really intelligent," that's sarcasm. If your girlfriend or boyfriend says it, that's love--I think.)
is a form of irony that attacks a person or belief through harsh and bitter remarks that often mean the opposite of what they say. See, for example, Dave Bidini's sarcastic description of arena names in "Kris King Looks Terrible": "…these days, arena names make little sense. For instance, not only does the National Car Rental Center, home of the Florida Panthers, promise little in the way of aesthetics, you can't even rent a car there. Same with the horseless Saddledome in Calgary. And despite the nation's affection for the old Maple Leaf Gardens, there's probably more foliage growing on the Hoover Dam. See also satire. Satire
is another term for verbal irony--the act of ostensibly saying one thing but meaning another. Example: A sarcastic remark directed at a person who consistently arrives fifteen minutes late for appointments might be, "Oh, you've arrived exactly on time!"
Sarcasm is sneering, jesting, or mocking a person, situation or thing. It is strongly associated with irony, with some definitions classifying it as a type of verbal irony intended to insult or woundhttp://home.cfl.rr.com/eghsap/apterms.html, http://london.sonoma.edu/Essays/glossary.html, http://www.georgiasouthern.edu/~dougt/terms.htm, http://www.sparknotes.com/testprep/books/newsat/chapter12section2.rhtml, http://www.pearsoned.ca/text/flachmann4/gloss_iframe.html, http://station05.qc.ca/csrs/bouscol/anglais/book_report/glossary3.html, http://www.answers.com/topic/sarcasm â€” stating the opposite of the intended meaning, e.g. using "that's fantastic" to mean "that's awful". It is used in a humorous manner, often harshly, and is expressed through vocal intonations such as over-emphasizing the actual statement or particular words.