In some cases slang may provide a needed name for an object or action (walkie-talkie, a portable two-way radio; tailgating, driving too close behind another vehicle), or it may offer an emotional outlet (buzz off! for go away!) or a satirical or patronizing reference (smokey, state highway trooper). It may provide euphemisms (john, head, can, and in Britain, loo, all for toilet, itself originally a euphemism), and it may allow its user to create a shock effect by using a pungent slang expression in an unexpected context. Slang has provided myriad synonyms for parts of the body (bean, head; schnozzle, nose), for money (moola, bread, scratch), for food (grub, slop, garbage), and for drunkenness (soused, stewed, plastered).
Slang is used for many purposes, but generally it expresses a certain emotional attitude; the same term may express diametrically opposed attitudes when used by different people. Many slang terms are primarily derogatory, though they may also be ambivalent when used in intimacy or affection. Some crystallize or bolster the self-image or promote identification with a class or in-group. Others flatter objects, institutions, or persons but may be used by different people for the opposite effect. "Jesus freak," originally used as ridicule, was adopted as a title by certain street evangelists. Slang sometimes insults or shocks when used directly; some terms euphemize a sensitive concept, though obvious or excessive euphemism may break the taboo more effectively than a less decorous term. Some slang words are essential because there are no words in the standard language expressing exactly the same meaning; e.g., "freak-out," "barn-storm," "rubberneck," and the noun "creep." At the other extreme, multitudes of words, vague in meaning, are used simply as fads.
There are many other uses to which slang is put, according to the individual and his place in society. Since most slang is used on the spoken level, by persons who probably are unaware that it is slang, the choice of terms naturally follows a multiplicity of unconscious thought patterns. When used by writers, slang is much more consciously and carefully chosen to achieve a specific effect. Writers, however, seldom invent slang.
It has been claimed that slang is created by ingenious individuals to freshen the language, to vitalize it, to make the language more pungent and picturesque, to increase the store of terse and striking words, or to provide a vocabulary for new shades of meaning. Most of the originators and purveyors of slang, however, are probably not conscious of these noble purposes and do not seem overly concerned about what happens to their language.
