from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. Anything old or of inferior quality.
- n. Redundant, old or improperly written code, especially that which accumulates over time; clutter.
Uncertain: possibly from Cruft Hall, the name of the radar laboratory of Harvard's physics department during the Second World War, which contained much old and unused technical equipment; possibly a blend of crust and fluff, both of which suggest things that are obsolete and superfluous; possibly a modified form of crust. (Wiktionary)