pixel sort n. [Commodore users] Any compression routine
which irretrievably loses valuable data in the process of
{crunch}ing it. Disparagingly used for `lossy' methods such as
JPEG. The theory, of course, is that these methods are only used on
photographic images in which minor loss-of-data is not visible to
the human eye. The term `pixel sort' implies distrust of this
theory. Compare {bogo-sort}.