Some of the most colorful and entertaining ways to use the English language are colloquialisms. A colloquialism is a word, phrase or language convention used in informal English. A colloquialism is usually used by English speakers in a certain geographic area or English speakers of a certain dialect. Colloquialisms are not usually used in formal writing, though they are often used in literature to create a certain effect or to flesh out a character. Mark Twain was a master of using colloquialisms in his characters’ dialogue. A colloquialism may be a single word such as ain’t, a phrase such as shake a stick at, or an aphorism such as I don’t care what you call me as long as you call me for supper. While a colloquialism may use regional slang words, it differs from slang in that it is used and understood by people of all ages, occupations and economic classes in a particular region. Colloquialisms offer great insight into the interests, problems and worries of the people of who use those terms. With the advent of mass media, colloquialisms have gained a wider audience and often a wider use than they may have had in the past.
In those with a BMI under 35, intra-abdominal body fat is related to negative health outcomes independent of total body fat.  Intra-abdominal or visceral fat has a particularly strong correlation with cardiovascular disease . 
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1810, "a colloquial word or phrase," from colloquial + -ism .
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Jargon is terminology that is especially defined in relationship to a specific activity, profession, or group. The term refers to the language used by people who work in a particular area or who have a common interest. Much like slang, it is a kind of shorthand used to express ideas that are frequently discussed between members of a group, though it can also be developed deliberately using chosen terms.  While a standard term may be given a more precise or unique usage amongst practitioners of relevant disciplines, it is often reported that jargon is a barrier to communication for those people unfamiliar with the respective field. [ citation needed ]