geek code

geek code n.  A set of codes commonly used in {sig block}s to
   broadcast the interests, skills, and aspirations of the poster.
   Features a G at the left margin followed by numerous letter codes,
   often suffixed with plusses or minuses.  Because many net users are
   involved in computer science, the most common prefix is `GCS'.  To
   see a copy of the current Code of the Geeks, finger
   hayden@vax1.mankato.msus.edu. See also {computer
   geek}. .