munge
Verb
Meaning
(transitive, computing, informal) To transform data in an undefined or unexplained manner, as for example when data wrangling requires nonsystemic or nonsystematic edits.
(transitive, computing, informal) To add a spamblock to (an email address).
(transitive, genealogy, informal) To corrupt a record about an individual by erroneously merging in information about another individual.
It looks like this record is munged—it has this person's birth date, but his father's death date