Sweden added the word "ungoogleable" to its list of new words but was then forced to remove the word because of Google legal requests.
Google wanted the word to relate to only searches done on Google, not any other search engine. The word means, something that you can't find on the web with the use of a search engine. Google wanted it to be specific to things you cannot find using Google, not any search engine.
Sweden's Language Council said the legal battle between Sweden and Google's lawyers "too much time and resources" so they simply decided to remove the word from their list.
I don't think Google can prevent people from using the word in general but I guess they can disallow it from being on certain lists?
Forum discussion at WebmasterWorld.