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).

<http://www.catb.org/~esr/jargon/html/M/munge.html>