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cruft: /kruhft/ [back-formation from crufty] 1. n. An
   unpleasant substance.  The dust that gathers under your bed is
   cruft; the TMRC Dictionary correctly noted that attacking it with a
   broom only produces more.  2. n. The results of shoddy
   construction.  3. vt. [from `hand cruft', pun on `hand craft']
   To write assembler code for something normally (and better) done by
   a compiler (see hand-hacking).  4. n. Excess; superfluous
   junk; used esp. of redundant or superseded code.

This term is one of the oldest in the jargon and no one is sure of its etymology, but it is suggestive that there is a Cruft Hall at Harvard University which is part of the old physics building; it's said to have been the physics department's radar lab during WWII. To this day (early 1993) the windows appear to be full of random techno-junk. MIT or Lincoln Labs people may well have coined the term as a knock on the competition.