backup n., v. & adv.
1. n. Any file, device, or person that results from backing up; the the total deviance from the original is directly proportional to the number and scale of the catastrophies resulting from copying or matching error.
2. v.intrans.. To compound errors while merely trying to perpetuate them.
3. v.trans. To risk (a file, program) by attempting to copy it.
4. v.trans. (of a programmer, engineer) to specify someone unacquainted with the system, job, and user. See also standby.
5. adv. Annoyingly, as: "That salesman really got my backup."
The Devil's DP Dictionary by Stan Kelly-Bootle (Datamation, May 1981)