chatmate

From chat +‎ mate.

chatmate (plural chatmates)

1. A friend or acquaintance through Internet chat.
   • 2001, Michael Miller, Special Edition Using the Internet and Web, page 217:

     Make sure that your kids are well informed, that they use good judgment, and that they never, ever arrange to meet a chatmate without your supervision.

   • 2007, Helmuth Rolfes, Communicatio Socialis:

     Mobile chat subscribers, meanwhile, enjoy meeting chatmates and new friends. For them, chatting with strangers is exciting, entertaining and a kind of adventure.