/glark/ To figure something out from context.
"The System III manuals are pretty poor, but you can generally glark the meaning from context."
Interestingly, the word was originally "glork"; the context was "This gubblick contains many nonsklarkish English flutzpahs, but the overall pluggandisp can be glorked [sic] from context" (David Moser, quoted by Douglas Hofstadter in his "Metamagical Themas" column in the January 1981 "Scientific American").
It is conjectured that hackish usage mutated the verb to "glark" because glork
was already an established jargon term.