Che, Big Balls!

Every culture has its distinct customs and traditions. Web site Travel Etiquette breaks them down by country to help teach you how to behave before you head off on your trip so that you can represent yourself and your home country well.
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Sample tips include how to dress appropriately, dine properly, and meet-and-greet people. For example, Travel Etiquette says not to be surprised by social situations in Argentina that involve swearing.

...Don't be alarmed or surprised to hear what you might consider to be name-calling or swearing amongst friends. In this instance, political correctness certainly does not rule supreme, and Argentines might readily use phrases such as 'fat' or 'big balls' when talking to friends. No harm is meant, it's simply the culture and friendly banter!

Travel Etiquette (via Lifehacker)