Munge is a verb used with or without an object in computer slang to mean:
- to manipulate (raw data), especially to convert (data) from one format to another, or
- as a derogatory term meaning to poorly or tortuously transform disparate bits of information, or
- to completely recode a routine, data structure or program.
It may be confused with or derive from mung (with its rank implications), or possibly vice-versa, or it may have been borrowed from the french “mange un mélange”: to eat a mixture or medley.