"In its 20th annual words of the year vote, the American Dialect Society voted “tweet” (noun, a short message sent via the Twitter.com service, and verb, the act of sending such a message) as the word of the year and “ google” (a generic form of “Google,” meaning “to search the Internet) as its word of the decade."
Well I never learned these in my English class but it seems the internet is the new teacher now!
More details here.