Bad Jokes and Other Deleted Nonsense/Body Parts SlangI never cease to be amazed at the wealth of information and nonsense that can be found on Wikipedia. This entry, containing a list of euphemisms for body parts was quite entertaining, especially if you have a 6th grade sense of humor like me!
A few more semi-related lists and links on obscuring meaning:
The Euphemism GeneratorThought-terminating clichésList of Nineteen Eighty-Four Newspeak wordsNCTE Doublespeak AwardEncyclopedia of SexThe World's Largest Collection of Masturbation Synonyms & Random Masturbation Synonym GeneratorAnd taking this just one step too far
A list of Things People Put up Their Butts .