You will hear people say the C-word. Except, it's a regional language: in British English, c - t has much less of an inflammatory sense than it does in North American English. You can hear someone on British TV called "a c - ting monkey" or a man being called a c - t. The particular fascination of profanity is how culturally specific it is and how it evolves.

I certainly self-police my language depending on who I'm talking to. I try to be very careful about using filler words, about not drawling certain vowels, even when I can't say "drawl" without drawling. That's kind of sad, because self-policing inhibits communication. You're more focused on the words coming out of your mouth or that should not be coming out of your mouth than making a connection with the person you're speaking to.

Language is the primary way we communicate with each other, and we have really strong feelings about what words mean, and about good language and bad. Those things are really based on sort of an agglutination of half-remembered rules from high school or college, and our own personal views on language and the things we grew up saying, the things we grew up being told not to say.

Language is a signifier - it points to something. But those somethings change sometimes. Where the line comes down is that change is not in the dictionary first, it's not: change the signifier and the signified will go away.

I make the case in the book that Standard English, that language we all aspire to live and move and have our being within, is actually based on a fiction. It's not anyone's native way of speaking or writing. That's why we have to take classes in it. Language is just really squishy.

The initial 18th-, 19th-century intention was to give the less-educated lower classes a way to move up into this new, rising middle class, to enable them to fit in. So our view of language as being class-based is an unintended consequence of the drive to help educate rising businessmen.

Words have always been political, and that means that, in many people's minds, dictionaries are political. Because that's what dictionaries do: they do words.