Source : Free On-Line Dictionary of Computing

joe code
     
        /joh' kohd"/ 1. Code that is overly {tense} and
        unmaintainable.  "{Perl} may be a handy program, but if you
        look at the source, it's complete joe code."
     
        2. Badly written, possibly buggy code.
     
        Correspondents wishing to remain anonymous have fingered a
        particular Joe at the Lawrence Berkeley Laboratory and
        observed that usage has drifted slightly; the original
        sobriquet "Joe code" was intended in sense 1.
     
        [{Jargon File}]