Bad Words! ssshhh...

All languages have swearwords, but the words that are considered expletives and the social attitudes toward them change over time. In many languages, words that used to be taboo are now commonplace and other words have taken their place as obscenities. In American English, the words currently considered to be the most vulgar and offensive have existed for hundreds of years. Their designation as obscenities, however, took place largely during and after the 1800s. In fact, the use of the word "dirty" to describe words arose in the 19th century, as did the word "profanity"