poke-nook
/ˈpəʊknʊk/Scottish and English regional (northern )
noun
A bottom corner of a bag, sack, etc. Frequently in extended use in phrases, as one's own poke-nook: one's own means; to pickle in one's own poke-nook: to rely on one's own resources.
Origin
Late 16th century; earliest use found in Robert Sempill (d.?1595), poet and protestant controversialist. From poke + nook.