munge?? Qu'est-ce que c'est?
It's a programmer's word.  I actually looked it up to make sure it was out there before I posted ;-).  I think of it as two things pushed together in a messy fashion, but the dictionary I found lists it slightly differently:

"According to The New Hacker's Dictionary, munge (pronounced MUHNJ) is (1) a verb, used in a derogatory sense, meaning to imperfectly transform information, or (2) a noun meaning a comprehensive rewrite of a routine, data structure, or the whole program.

The editor of The New Hacker's Dictionary relates munge to mung, a verb meaning to make large-scale changes to a file or to destroy something, accidentally or maliciously. Mung was reported to be an acronym for 'Mash until no good.'"

http://whatis.techtarget.com/definition/0,,sid9_gci214416,00.html

I fugured "imperfectly transform" worked for transportation politics ;-)