mung
verbUS /mʌŋ/
Etymology Often doubtfully explained as mash until no good, or a self-referencing (recursive) acronym, mung until no good. Rumored to have originated from one of the Massachusetts Institute of Technology computer groups in the 1970s or 1980s. Potentially related to mangle.
1
Computing, Engineering, Mathematics, Natural sciences, Physical sciences, Sciences Informal To make repeated changes to a file or data which individually may be reversible, yet which ultimately result in an unintentional irreversible destruction of large portions of the original data.
2
Broadly, Informal To harm, to damage; to destroy.