A instant messaging system used by jewish people to communicate through heads so that goys cannot understand or attempt to interprate the conversation. Similar to AIM or Aol Instant Messaging.
Abraham looked across the commons at Sallie and was "Jewish Instant Messaging (JIM)" her as she walked towards the tables. Johnny, the preachers son had no idea what they were saying, but gee I guess he did have a comb-over that day.
by Fekakta October 25, 2009