DuckCorp Dico

Found one definition

1.                 From The Free On-line Dictionary of Computing (19 January 2023):
                   
   
   
                   
                     
   borf
      <jargon> To uncerimoniously disconnect someone from a system
      without prior warning.  BBS Sysops routinely "borf" pest
      users by turning off the modem or by hitting the "auto-borf"
      key sequence.
      You can also be "borfed" by software dropping carrier due to
      a bug.
      The origin of the term is unknown but it has been in use since
      at least 1982.
      (1997-03-21)