Mung is computer jargon for a series of potentially destructive or irrevocable changes to a piece of data or a file. It is sometimes used for vague data transformation steps that are not yet clear to the speaker.

What munge means?

to manipulate (raw data), especially to convert (data) from one format to another: the munging of HTML content.

What is a munging party?

munging. 1) Go to a graveyard, with a friend, and find the freshest female grave. 2) Have you friend, or yourself, take ten to twelve full paces away from the undug body, and, with a running jump, stomp onto the bloated body. 3) Inhale/partake in the consumption of her bodily fluids via vagina.