DuckCorp Dico

Found one definition

1.                 From The Jargon File (version 4.4.7, 29 Dec 2003):
                   
   
   
                   
                     
   blast
   
       1. v.,n. Synonym for BLT, used esp. for large data sends over a network
       or comm line. Opposite of snarf. Usage: uncommon. The variant ‘blat’ has
       been reported.
       2. vt. [HP/Apollo] Synonymous with nuke (sense 3). Sometimes the message
       Unable to kill all processes. Blast them (y/n)? would appear in the command
       window upon logout.