DuckCorp Dico

Found one definition

1.                 From The Free On-line Dictionary of Computing (19 January 2023):
                   
   
   
                   
                     
   blast
      1. BLT, used especially for large data sends over a network
      or comm line.  Opposite of snarf.  Usage: uncommon.  The
      variant "blat" has been reported.
      2. [HP/Apollo] Synonymous with nuke.  Sometimes the message
      "Unable to kill all processes.  Blast them (y/n)?"  would
      appear in the command window upon logout.
      3. <communications. Glenn Smith's popular 1980s protocol.
      (2021-03-21)