Sarcasm is “a sharp, bitter, or cutting expression or remark; a bitter jibe or taunt.” Though irony and understatement is usually the immediate context, most authorities sharply distinguish sarcasm from irony; however, others argue that sarcasm may or often does involve irony or employs ambivalence. Sarcasm has been suggested as a possible bullying action in some circumstances.
Origin of the term
It is first recorded in English in 1579, in an annotation to The Shepheardes Calender: October:
The word comes from the late Greek σαρκασμός (sarkasmόs) taken from the word σαρκάζειν meaning ...