Source : Free On-Line Dictionary of Computing

de-rezz
     
         /dee-rez'/ (Or "derez") "de-resolve" via the film
        "Tron".  1. To disappear or dissolve; the image that goes with
        it is of an object breaking up into raster lines and static
        and then dissolving.  Occasionally used of a person who seems
        to have suddenly "fuzzed out" mentally rather than physically.
        Usage: extremely silly, also rare.  This verb was actually
        invented as *fictional* hacker jargon, and adopted in a spirit
        of irony by real hackers years after the fact.
     
        2. The Macintosh resource decompiler.  On a Macintosh, many
        program structures (including the code itself) are managed in
        small segments of the program file known as "resources"; "Rez"
        and "DeRez" are a pair of utilities for compiling and
        decompiling resource files.  Thus, decompiling a resource is
        "derezzing".  Usage: very common.
     
        [{Jargon File}]