grind: vt. 1. [MIT and Berkeley] To prettify hardcopy of code,

:grind: vt. 1. [MIT and Berkeley] To prettify hardcopy of code,
especially LISP code, by reindenting lines, printing keywords and
comments in distinct fonts (if available), etc. This usage was
associated with the MacLISP community and is now rare;
{prettyprint} was and is the generic term for such
operations. 2. [UNIX] To generate the formatted version of a
document from the {{nroff}}, {{troff}}, {{TeX}}, or Scribe
source. 3. To run seemingly interminably, esp. (but not
necessarily) if performing some tedious and inherently useless
task. Similar to {crunch} or {grovel}. Grinding has a
connotation of using a lot of CPU time, but it is possible to grind
a disk, network, etc. See also {hog}. 4. To make the whole
system slow. "Troff really grinds a PDP-11." 5. `grind grind'
excl. Roughly, "Isn't the machine slow today!"
-- The AI Hackers Dictionary