elephantine

elephantine adj.  Used of programs or systems that are both
   conspicuous {hog}s (owing perhaps to poor design founded on
   {brute force and ignorance}) and exceedingly {hairy} in
   source form.  An elephantine program may be functional and even
   friendly, but (as in the old joke about being in bed with an
   elephant) it's tough to have around all the same (and, like a
   pachyderm, difficult to maintain).  In extreme cases, hackers have
   been known to make trumpeting sounds or perform expressive
   proboscatory mime at the mention of the offending program.  Usage:
   semi-humorous.  Compare `has the elephant nature' and the
   somewhat more pejorative {monstrosity}.  See also
   {second-system effect} and {baroque}.