munge

munge /muhnj/ vt.  1. [derogatory] To imperfectly
   transform information.  2. A comprehensive rewrite of a routine,
   data structure or the whole program.  3. To modify data in some way
   the speaker doesn't need to go into right now or cannot describe
   succinctly (compare {mumble}).

   This term is often confused with {mung}, which probably was
   derived from it.  However, it also appears the word `munge' was in
   common use in Scotland in the 1940s, and in Yorkshire in the 1950s,
   as a verb, meaning to munch up into a masticated mess, and
   as a noun, meaning the result of munging something up (the
   parallel with the {kluge}/{kludge} pair is amusing).