Source : Free On-Line Dictionary of Computing

voodoo programming
     
         (From George Bush's "voodoo economics") The use by
        guess or cookbook of an obscure or {hairy} system, feature, or
        algorithm that one does not truly understand.  The implication
        is that the technique may not work, and if it doesn't, one
        will never know why.  Almost synonymous with {black magic},
        except that black magic typically isn't documented and
        *nobody* understands it.
     
        Compare {magic}, {deep magic}, {heavy wizardry}, {rain dance},
        {cargo cult programming}, {wave a dead chicken}.
     
        [{Jargon File}]
     
        (1995-03-10)