grok /grok/, var. /grohk/ vt.
[common; from the
novel "Stranger in a Strange Land", by Robert A. Heinlein,
where it is a Martian word meaning literally `to drink' and
metaphorically `to be one with'] The emphatic form is `grok in
fullness'. 1. To understand, usually in a global sense. Connotes
intimate and exhaustive knowledge. Contrast zen, which is
similar supernal understanding experienced as a single brief flash.
See also glark. 2. Used of programs, may connote merely
sufficient understanding. "Almost all C compilers grok the
void type these days."