grind
     n 1: an insignificant student who is ridiculed as being affected
          or studying excessively [syn: {swot}, {nerd}, {wonk}, {dweeb}]
     2: hard monotonous routine work [syn: {drudgery}, {plodding}, {donkeywork}]
     3: the act of grinding to a powder or dust [syn: {mill}, {pulverization},
         {pulverisation}]
     v 1: press or grind with a crunching noise [syn: {crunch}, {cranch},
           {craunch}]
     2: make a grating or grinding sound by rubbing together; "grate
        one's teeth in anger" [syn: {grate}]
     3: reduce to small pieces or particles by pounding or abrading;
        "grind the spices in a mortar"; "mash the garlic" [syn: {mash},
         {crunch}, {bray}, {comminute}]
     4: work hard; "She was digging away at her math homework";
        "Lexicographers drudge all day long" [syn: {labor}, {labour},
         {toil}, {fag}, {travail}, {drudge}, {dig}, {moil}]
     5: dance by rotating the pelvis in an erotically suggestive
        way, often while in contact with one's partner such that
        the dancers' legs are interlaced
     [also: {ground}]
Source: WordNet® 2.0

grind vt. 1. [MIT and Berkeley; now rare] 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. [common] 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!"


Source: The Jargon File