munge

verb3

1. •
   (informal) To transform data in an undefined or unexplained manner, as for example when data wrangling requires nonsystemic or nonsystematic edits.
2. •
   (informal) To corrupt a record about a person by erroneously merging in information about another person.

   • It looks like this record is munged—it has this person’s birth date, but his father’s death date.
3. •
   (informal) To add a spamblock to (an email address).

   • Munging is effective — it prevents unwanted email from reaching you by keeping your real email address out of the clutches of the address-harvesting programs. — 1998