Source : Free On-Line Dictionary of Computing

feature creature
     
        [Possibly from slang "creature feature" for a horror movie]
        1. One who loves to add features to designs or programs,
        perhaps at the expense of coherence, concision or {taste}.
     
        2. Alternately, a mythical being that induces otherwise
        rational programmers to perpetrate such crocks.  See also
        {feeping creaturism}, {creeping featurism}.
     
        [{Jargon File}]