Euphemism, and its flip-side, dysphemism, is a rather common linguistic phenomenon. Like the passive voice, it has been derided by many, but used by more. Some seem to think that it was created by a cabal of the politcally correct, when it is simply a part of the language we all speak.
There's a good book on the subject:
Euphemism and Dysphemism: Language Used as a Shield and a Weapon, 1991, by Keith Allan and Kate Burridge, two Australian linguists.
quote:
The form of language that a person uses can cause offense to other human beings and to gods—even to dangerous animals. The result of misusing language can be dire: according to Leviticus (24:16) God told Moses "He that blasphemeth the name of the Lord shall be put to death." To shield a speaker from the consequences of giving offence, all languages have euphemisms. Euphemistic expressions trade on illusion: the bluntly profane (and therefore in some eyes blasphemous) "Jesus Christ!" is euphemistically transmuted into "Jeepers Creepers!" but the same person is referred to by both, and if the former is profane, even blasphemous, so should the latter be, too. Similarly, the euphemistic "Your dog went to the bathroom in my driveway!" describes an event that is equally well captured by "Your dog shat in my driveway!" Euphemisms have existed throughout recorded history; they are used among preliterate peoples, and have probably been around ever since recognizably human language developed. Likewise has offensive language, what we call "dysphemism."
How are euphemism and dysphemism to be defined? Is euphemism necessarily tied to taboo? What topics are taboo? Why are women's bodies so strongly tabooed? Do euphemism and dysphemism reflect the intrinsic conflict between intellect and body within human geings? What sorts of euphemisms are there? Where do conventional euphemisms and dysphemisms come from? How are euphemism and dysphemism related to one another? How are they related to neutral terms, if there are such things? Why is it that the euphemism of yesteryear (e.g., "toilet") is replaced by a new one ("bathroom")? How do euphemism and dysphemism related to slang and jargons? What makes people swear? How many euphemisms are there in English for the genital organs? All these questions and many more are broached in this book.
[I apologize, in advance, if the style of this quotation and the book itself are in an impenetrable academese.]
—Ceci n'est pas un seing.