n. a bag or sack in which to keep provisions while on the trail.
See also: grub-bag
- 1912  He mopped his forehead, and across a heap of grub-sacks saw John Bellew gazing at him, wintry amusement in his eyes.
- 1956  [The wolves] ripped his rabbit robe, dug into his grubsack, ate even a chunk of meat he had cooked in a pot.