the act of which one is on myspace or facebook looking at pictures, comments, bulletins or anything of that matter, of another person to see who they're talking to, what about, and possibly who they like. Lurkin', or Lurking can be an act of bordem, or just a way to find out gossip. Although there is a fine line between lurkin', and being obsessive.
Kristen: "I think Ashley and Timmy are talking again."
Melissa: "How do you know?"
Kristen: "Last night I was lurkin' and saw that they were commenting eachother about hanging out."