@-party

@-party /at'par`tee/ n.  [from the @-sign in an Internet
   address] (alt. `@-sign party' /at'si:n par`tee/) A
   semi-closed party thrown for hackers at a science-fiction
   convention (esp. the annual Worldcon); one must have a
   {network address} to get in, or at least be in company with
   someone who does.  One of the most reliable opportunities for
   hackers to meet face to face with people who might otherwise be
   represented by mere phosphor dots on their screens.  Compare
   {boink}.