How Not to Say What You Mean: A Dictionary of Euphemisms by R.W. Holder
This re-named edition of "A Dictionary of Euphemisms" is full of old favourites, such as "early bath" or "push up the daisies", as well as euphemisms from modern times, like "human sacrifice" and "coffee-housing". Definitions include examples from real authors, along with historical explanations of origins, and now obsolete euphemisms like "leaping house", "nightingale" are signposted as such. To prove that the use of euphemisms is not just a British speciality, there is widespread coverage of American euphemisms too: "English" (pertaining to sexual deviance), and "watermelon" (an indication of pregnancy) are two examples.