According to the Oxford University Press blog (which in itself is a quagmire), “unfriend” is the 2009 Word of the Year. Stiff competition? “teabagger.” I can’t wait until 2010 when “rimjob” might be in contention…
Anyway, the trouble here is, have you ever heard anyone use the term “unfriend?” I would think that word would be a derivation of the adverb, “unfriendly,” which is, afterall, a real word. eg: “The Id can be very unfriendly when she’s in a bad mood. She unfriended me last week by farting on my bed, although I’m not sure that was the result of a bad mood.” If her unfriendliness ever gets so bad that I want to cut all ties with her, I will “defriend” her from my facebook, and “stop being roommates with” her in real life.
Negative prefixes aren’t always perfect, but it makes more sense to think of “defriend” like “deactivate” (as if I would “deactivate” my facebook account) than “unfriend” like “undo” (as if I would Ctrl + Z our friendship).
UPDATE: Luke Russert agrees.
But the root of the matter, beyond the fact that Brits shouldn’t worry their pretty little heads about how badly Americans bastardise [sic] the English language, is that when the real world tries to make sense of and codify the random and natural evolution of the internet, something’s bound to miss its mark.
When you have the world at your fingertips, it doesn’t make sense to go to a dusty library, sort through shelves of books, and then put as much of the world as can be contained by 1,000 abridged pages at your fingertips. When there’s a .com version of a real-life thing, the online thing wins.
Dictionary.com > Dictionary.
Google Translate > Merriam-Webster’s Spanish/English dictionary. (For that matter, Google > Human brain)
Thesaurus.com> Shift F7 > Thesaurus.
The one notable exception to this rule is virtual pets (and materialistic teenage girls, and farms). FooPets is on the list of websites I should not have access to. Because, on a Wednesday night with a little shiraz in my blood and an intense desire to play tug of war with my actual dog, a cute furry animated Shiba Inu who barks and sneezes and lets you rub his tummy (with your cursor) is a very reasonable alternative. Until, of course, these clever webmasters get you hooked and con you into paying electronic funds transfers real money for pet food, shampoo, and facebook birthday gift doodads that you can never actually touch. When the time comes that you actually consider PayPal-ing your money away for a jpeg birthday cake, you should probably just go to the library.