Sarcasm is "a sharp, bitter, or cutting expression or remark; a bitter gibe or taunt". Sarcasm may employ ambivalence, although sarcasm is not necessarily ironic. Most noticeable in spoken word, sarcasm is mainly distinguished by the inflection with which it is spoken and is largely context-dependent.
Origin of the term
The word comes from the Greek σαρκασμός (sarkasmós) which is taken from σαρκάζειν (sarkázein) meaning "to tear flesh, bite the lip in rage, sneer".
Tom piper, an ironicall Sarcasmus, spoken in derision of these rude wits, whych ...
However, the word sarcastic, meaning "Characterized by or involving sarcasm; given to the use of sarcasm; bitterly cutting or caustic", doesn't appear until 1695.
In sarcasm, ridicule or mockery is used harshly, often crudely and contemptuously, for destructive purposes. It may be used in an indirect manner, and have the form of irony, as in "What a fine musician you turned out to be!," "It's like you're a whole different person now...," and "Oh... Well then thanks for all the first aid over the years!" or it may be used in the form of a direct statement, "You couldn't play one piece correctly if you had two assistants." The distinctive quality of sarcasm is present in the spoken word and manifested chiefly by vocal inflection ...
The use of strategies which, on the surface appear to be appropriate to the situation, but are meant to be taken as meaning the opposite in terms of face management. That is, the utterance which appears, on the surface, to maintain or enhance the face of the recipient actually attacks and damages the face of the recipient. ... sarcasm is an insincere form of politeness which is used to offend one's interlocutor.
17.'Never a truer word said in jest': A Pragmastylistic Analysis of Impoliteness as Banter in Henry IV, Part I, Derek Bousfield (University of Huddersfield, UK)
John Haiman writes: "There is an extremely close connection between sarcasm and irony, and literary theorists in particular often treat sarcasm as simply the crudest and least interesting form of irony." Also, he adds:
First, situations may be ironic, but only people can be sarcastic. Second, people may be unintentionally ironic, but sarcasm requires intention. What is essential to sarcasm is that it is overt irony intentionally used by the speaker as a form of verbal aggression.
While Henry Watson Fowler writes:
Sarcasm does not necessarily involve irony. But irony, or the use of expressions conveying different things according as they are interpreted, is so often made the vehicle of sarcasm ... The essence of sarcasm is the intention of giving pain by (ironical or other) bitter words.
Professionals in psychology and related fields have long looked upon sarcasm negatively, particularly noting that sarcasm tends to be a maladaptive coping mechanism for those with unresolved anger or frustrations. Psychologist Clifford N. Lazarus describes sarcasm as "hostility disguised as humor". While an occasional sarcastic comment may enliven a conversation, Lazarus suggests that too frequent use of sarcasm tends to "overwhelm the emotional flavor of any conversation".
Understanding the subtlety of this usage requires second-order interpretation of the speaker's or writer's intentions; different parts of the brain must work together to understand sarcasm. This sophisticated understanding can be lacking in some people with certain forms of brain damage, dementia and autism (although not always), and this perception has been located by MRI in the right parahippocampal gyrus. Research has shown that people with damage in the prefrontal cortex have difficulty understanding non-verbal aspects of language like tone, Richard Delmonico, a neuropsychologist at the University of California, Davis, told an interviewer. Such research could help doctors distinguish between different types of neurodegenerative diseases, such as frontotemporal dementia and Alzheimer's disease, according to David Salmon, a neuroscientist at the University of California, San Diego.
In William Brant's Critique of Sarcastic Reason, sarcasm is hypothesized to develop as a cognitive and emotional tool that adolescents use in order to test the borders of politeness and truth in conversation. Sarcasm recognition and expression both require the development of understanding forms of language, especially if sarcasm occurs without a cue or signal (e.g., a sarcastic tone or rolling the eyes). Sarcasm is argued to be more sophisticated than lying because lying is expressed as early as the age of three, but sarcastic expressions take place much later during development (Brant, 2012). According to Brant (2012, 145-6), sarcasm is
(a) form of expression of language often including the assertion of a statement that is disbelieved by the expresser (e.g., where the sentential meaning is disbelieved by the expresser), although the intended meaning is different from the sentence meaning. The recognition of sarcasm without the accompaniment of a cue develops around the beginning of adolescence or later. Sarcasm involves the expression of an insulting remark that requires the interpreter to understand the negative emotional connotation of the expresser within the context of the situation at hand. Irony, contrarily, does not include derision, unless it is sarcastic irony. The problems with these definitions and the reason why this dissertation does not thoroughly investigate the distinction between irony and sarcasm involves the ideas that: (1) people can pretend to be insulted when they are not or pretend not to be insulted when they are seriously offended; (2) an individual may feel ridiculed directly after the comment and then find it humorous or neutral thereafter; and (3) the individual may not feel insulted until years after the comment was expressed and considered.
Cultural perspectives on sarcasm vary widely with more than a few cultures and linguistic groups finding it offensive to varying degrees. Thomas Carlyle despised it: "Sarcasm I now see to be, in general, the language of the devil; for which reason I have long since as good as renounced it". Fyodor Dostoyevsky, on the other hand, recognized in it a cry of pain: Sarcasm, he said, was "usually the last refuge of modest and chaste-souled people when the privacy of their soul is coarsely and intrusively invaded." RFC 1855, a collection of guidelines for Internet communications, includes a warning to be especially careful with it as it "may not travel well." A professional translator has advised that international business executives "should generally avoid sarcasm in intercultural business conversations and written communications" because of the difficulties in translating sarcasm.
A 2015 study by L. Huang, F. Gino and A.D. Galinsky of the Harvard Business School "tests a novel theoretical model in which both the construction and interpretation of sarcasm lead to greater creativity because they activate abstract thinking." 
In English, sarcasm is often telegraphed with kinesic/prosodic cues by speaking more slowly and with a lower pitch. Similarly, Dutch uses a lowered pitch; sometimes to such an extent that the expression is reduced to a mere mumble. But other research shows that there are many ways that real speakers signal sarcastic intentions. One study found that in Cantonese, sarcasm is indicated by raising the fundamental frequency of one's voice. In Amharic, rising intonation is used to show sarcasm.
Though in the English language there is no standard accepted method to denote irony or sarcasm in written conversation, several forms of punctuation have been proposed. Among the oldest and frequently attested are the percontation point—furthered by Henry Denham in the 1580s—and the irony mark—furthered by Alcanter de Brahm in the 19th century. Both of these marks were represented visually by a ⸮ backwards question mark (unicode U+2E2E). Each of these punctuation marks are primarily used to indicate that a sentence should be understood as ironic, but not necessarily designate sarcasm that is not ironic. By contrast, more recent proposals, such as the snark mark, or the use of a following tilde are specifically intended to denote sarcasm rather than irony. A bracketed exclamation point or question mark as well as scare quotes are also sometimes used to express irony or ironic sarcasm.
In certain Ethiopic languages, sarcasm and unreal phrases are indicated at the end of a sentence with a sarcasm mark called temherte slaq, a character that looks like an inverted exclamation point ¡. The usage directly parallels John Wilkins' 1668 proposal to use the inverted exclamation point as an irony mark. A proposal by Asteraye Tsigie and Daniel Yacob in 1999 to include the temherte slaq in unicode was unsuccessful.
A French company has developed an analytics tool that claims to have up to 80% accuracy in identifying sarcastic comments posted online.
In late August 2016, North Korea banned sarcasm against the government. It was reported that the government gave the warnings in mass meetings across the country. Subsequent media reports suggest that North Korea banned sarcasm altogether.
- Taylor, Charlotte (2017). "Women are bitchy but men are sarcastic? Investigating gender and sarcasm". Gender and Language. Equinox. 11 (3): 415&ndash, 445. doi:10.1558/genl.27906.
- Oxford English Dictionary
- Boxer, D. (2002). "4 - 'Yeah right:' sociolinguistic functions of sarcasm in classroom discourse". Applying Sociolinguistics: Domains and Face-to-Face Interaction. John Benjamins Publications. p. 100. ISBN 978-90-272-1850-6.
Only people can be sarcastic, whereas situations are ironic.
- Rockwell, P. A. (2006). Sarcasm and Other Mixed Messages: The Ambiguous Ways People Use Language. Edwin Mellen Press. ISBN 978-0-7734-5917-5.
- Partridge, Eric (1969). Usage and Abusage: A Guide to Good English. Penguin Press. ISBN 0-393-31709-9.
Irony must not be confused with sarcasm, which is direct: sarcasm means precisely what it says, but in a sharp, bitter, cutting, caustic, or acerbic manner: it is the instrument of indignation, a weapon of offence, whereas irony is one of the vehicles of wit. In Locke’s ‘If ideas were innate, it would save much trouble to many worthy persons’, worthy is ironical; the principal clause as a whole is sarcastic as also is the complete sentence. Both are instruments of satire and vituperation.
- "Irony". Dictionary.com.
The distinctive quality of sarcasm is present in the spoken word and manifested chiefly by vocal inflection, whereas satire and irony arising originally as literary and rhetorical forms, are exhibited in the organization or structuring of either language or literary material.
- Campbell, JD. (2012). Investigating Components of Sarcastic Context.
The findings ... show that the target sentences, when presented in isolation, were not seen as being conventionally sarcastic in nature. These same target sentences, however, when surrounded by contextual information provided by the participants asked to create a sarcastic context, were later coded as being sarcastic by a naïve rater. 
- Oxford English Dictionary, Oxford University Press, 2008; (Spenser, Edmund, Shepheardes Calendar: on-line text of the passage)
- "Irony". Dictionary. Dictionary.com.
- Bousfield, D., "'Never a truer word said in jest': A Pragmastylistic Analysis of Impoliteness as Banter in Henry IV, Part I" in Marina Lambrou and Peter Stockwell, Contemporary Stylistics, Continuum International Publishing Group, 2010, p. 213.
- Haiman, John (1998). Talk is cheap : sarcasm, alienation, and the evolution of language. Oxford: Oxford University Press. p. 20. ISBN 978-0-19-511524-6.
- Fowler, Henry Watson (1950). A Dictionary of Modern English Usage. Oxford University Press.
- Briggs, Thomas H. (1928) "Sarcasm". The School Review Vol. 36, No. 9 (Nov., 1928), pp. 685-695
- Cason, H. (1930) Methods of preventing and eliminating annoyances. The Journal of Abnormal and Social Psychology, Vol 25(1), Apr 1930, 40-48.
- Lazarus, Clifford N. "Think Sarcasm is Funny? Think Again: Sarcasm is really just hostility disguised as humor" Psychology Today, Jun 26, 2012; accessed 15 Oct 2016
- Shamay-Tsoory, Simone G.; Tomer, R.; Aharon-Peretz, J. (2005). "The Neuroanatomical Basis of Understanding Sarcasm and Its Relationship to Social Cognition". Neuropsychology. 19 (3): 288–300. doi:10.1037/0894-4188.8.131.528. PMID 15910115.
- Hurley, Dan (June 3, 2008), The Science of Sarcasm (Not That You Care), New York Times
- Slap, J. W. (1966). "On Sarcasm". The Psychoanalytic Quarterly. 35: 98–107.
- Singer, Emily (23 May 2005). "Understanding Sarcasm is a Complex Business". New Scientist. Retrieved October 3, 2012.
- Brant, William (2012). Critique of sarcastic reason: the epistemology of the cognitive neurological ability called "theory-of-mind" and deceptive reasoning. Saarbrücken, [Germany]: Südwestdeutscher Verlag für Hochschulschriften. ISBN 978-3-8381-3457-4.
- Carlyle, Thomas. Originally published in 1833-34 in Fraser's Magazine.
- Dostoyevsky, R (1864). "Part 2 section VI". Notes from Underground.
- Wooten, Adam (September 9, 2011). "International Business: Sarcasm is never lost in translation: yeah, right!". Deseret News. Retrieved 10 November 2012.
- Huang, L.; Gino, F.; Galinsky, A.D. (2015). "The Highest Form of Intelligence: Sarcasm Increases Creativity Through Abstract Thinking for Both Expressers and Recipients". Organizational Behavior and Human Decision Processes. doi:10.1016/j.obhdp.2015.07.001. ISSN 0749-5978.
- Kinesic/prosodic cues are among five cues to sarcasm's presence noted by Diana Boxer, 2002:100; the other cues are counter-factual statements, extreme exaggeration, tag questions, and direct cues.
- Cheang, H. S.; Pell, M. D. (2009). "Acoustic markers of sarcasm in Cantonese and English". Journal of the Acoustical Society of America. 126 (3): 1394–1405. doi:10.1121/1.3177275. PMID 19739753.
- Leslau, Wolf. Reference Grammar of Amharic. Wiesbaden: Harrassowitz, 1995. 45. Print.
- Houston, Keith (2013). Shady Characters: The Secret Life of Punctuation, Symbols & Other Typographical Marks. New York & London: W. W. Norton & Company, Inc. pp. 36–37, 217–219, 221, 232–233, 239–244. ISBN 978-0-393-06442-1.
- "Guidance on Standards for Subtitling". ITC Guidance on Public Consultation: Codes & Guidance Notes. ITC. Retrieved 10 November 2012.
- "A Roadmap to the Extension of the Ethiopic Writing System Standard Under Unicode and ISO-10646" (pdf). 15th International Unicode Conference. p. 6. Retrieved 22 January 2011.
- Houston, Keith (2013). Shady Characters: The Secret Life of Punctuation, Symbols & Other Typographical Marks. New York & London: W. W. Norton & Company, Inc. pp. 212–215, 231–232. ISBN 978-0-393-06442-1.
- Houston, Keith (2013). Shady Characters: The Secret Life of Punctuation, Symbols & Other Typographical Marks. New York & London: W. W. Norton & Company, Inc. pp. 231–232. ISBN 978-0-393-06442-1.
- "Authorities 'use analytics tool that recognises sarcasm'". Retrieved July 4, 2013.
- Pauli, Darren (4 Jun 2014). "Oh, wow. US Secret Service wants a Twitter sarcasm-spotter". Retrieved 2014-06-04.
- Sunghui Moon, Jackie Yoo, Richard Finney (2016-09-02). "North Korean Citizens Warned Against 'Hostile' Speech". Radio Free Asia. Retrieved 2016-09-11.
- Barney Henderson (2016-09-08). "Kim Jong-un bans sarcasm in North Korea fearing people will only agree with him 'ironically'". The Telegraph. Retrieved 2016-09-11.
- "North Korean dictator Kim Jong Un bans sarcasm". Fox News. 2016-09-08. Retrieved 2016-09-11.
- Harriet Agerholm (2016-09-08). "North Korea bans sarcasm because Kim Jong-un fears people only agree with him 'ironically'". The Independent. Retrieved 2016-09-11.