Speaking in ways commonly used to
converse in text on the internet.
Including but not limited to; the (often unnecessary) abbreviation of
words, acronyms special characters (@,~), numbers (l33tsp33k), *actions*, /me command, "ooc" and other RP references, emotes, ASCII, Real or Pseudo Programming Code, and HTML tags
The recent popular use of text messaging on cell phones seems to have made the shortening of
words much more common than ever before.
Also: netspeek, netsp33k, n37sp33k, and other variations.