A euphemism is a generally harmless word, name, or phrase that substitutes an offensive or suggestive one. Some euphemisms intend to amuse, while others intend to give positive appearances to negative events or even mislead entirely. Euphemisms also often take the place of profanity. The opposite of euphemism roughly equates to dysphemism.

The word euphemism comes from the Greek word ευφημία (euphemia), meaning "the use of words of good omen", which in turn is derived from the Greek root-words eu (ευ), "good/well" + pheme (φήμι) "speech/speaking". The eupheme was originally a word or phrase used in place of a religious word or phrase that should not be spoken aloud; etymologically, the eupheme is the opposite of the blaspheme (evil-speaking). Primary examples of taboo words requiring the use of a euphemism are names for deities, such as Persephone, Hecate, or Nemesis. The term euphemism itself was used as a euphemism by the ancient Greeks, meaning "to keep a holy silence" (speaking well by not speaking at all).

George Denis Patrick Carlin (May 12, 1937 – June 22, 2008) was an American stand-up comedian, social critic, satirist, actor and writer/author, who won five Grammy Awards for his comedy albums.

Carlin was noted for his black humor as well as his thoughts on politics, the English language, psychology, religion, and various taboo subjects. Carlin and his "Seven Dirty Words" comedy routine were central to the 1978 U.S. Supreme Court case F.C.C. v. Pacifica Foundation, in which a narrow 5–4 decision by the justices affirmed the government's power to regulate indecent material on the public airwaves.

The first of his fourteen stand-up comedy specials for HBO was filmed in 1977. In 1988, the 1990s and 2000s, Carlin's routines focused on socio-cultural criticism of modern American society. He often commented on contemporary political issues in the United States and satirized the excesses of American culture. His final HBO special, It's Bad for Ya, was filmed less than four months before his death.