Misc - The Origins and Common Usage of British Swear-words

This entry discusses the etymology and application of a selection of words that, to varying degrees, can be considered vulgar or offensive. As a necessity, this entails the use of said words, and it is strongly advised that, should you find such words distressing or inappropriate, you do not read on beyond this point.

For the rest of you, there now follows an informative and hopefully educational entry on a potentially controversial topic - bad language...

http://www.bbc.co.uk/dna/h2g2/A753527