Although an uncommon and largely unheard of term, the trend is one of the more recurrent vacation activities among tourists worldwide.

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"Although in the United Kingdom presently resistant organisms are uncommon, we're seeing an increasing trend which is a small one at the moment but in other countries throughout the world, the trend is much faster and that will eventually come here irrespective of the organism, " he warns.

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Although car rental companies now quote rates including taxes, sticker shock is not uncommon when you finally see that hotel or restaurant bill.

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The configuration of the jet stream, a band of high-altitude westerly winds, also contributes, although its current position, to the far north above the continent, is not uncommon for summer, according to Mike Brewer, a physical scientist with the National Oceanographic and Atmospheric Administration.

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Although most couples don't have extended family announcing their disapproval on national television, it is certainly not uncommon for couples to elicit criticism from relatives over how they're raising their children.

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