With more than 82 million people texting regularly, it's no wonder you've seen this cryptic looking code! Commonly used wherever people get online -- including IMing , SMSing , cell phones , Blackberries , PDAs , Web sites , games , newsgroup postings , in chat rooms , on blogs -- these abbreviations are used by people to communicate with each other. The actual definition of an acronym and text shorthand is here.
Twitter, on account of the 140 character limit, encourages extensive use of shorthand typing.
Most of the acronyms you’ll find on Twitter are borrowed directly from decades of net culture, developed as easy Internet shorthand on electronic bulletin boards (BBSes), IRC , IM, and email. Twitter’s integration with SMS naturally means that texting lingo is inherently part of the argot.