Source : Free On-Line Dictionary of Computing

gubbish
     
         /guhb'*sh/ (A portmanteau of "garbage" and "rubbish"
        which may have originated with SF author Philip K. Dick)
        Garbage; crap; nonsense.  "What is all this gubbish?"  The
        opposite portmanteau "rubbage" is also reported.
     
        [{Jargon File}]
     
        (1995-05-09)