/dee-rez'/ (Or "derez") "de-resolve" via the film "Tron". 1. To disappear or dissolve; the image that goes with it is of an object breaking up into raster lines and static and then dissolving. Occasionally used of a person who seems to have suddenly "fuzzed out" mentally rather than physically. Usage: extremely silly, also rare. This verb was actually invented as *fictional* hacker jargon, and adopted in a spirit of irony by real hackers years after the fact.
2. The Macintosh resource decompiler. On a Macintosh, many program structures (including the code itself) are managed in small segments of the program file known as "resources"; "Rez" and "DeRez" are a pair of utilities for compiling and decompiling resource files. Thus, decompiling a resource is "derezzing". Usage: very common.