A stick used by many primitive peoples, such as the natives of Australia, for digging roots. Also called digging-stick.(noun)
The Century Dictionary (Public Domain)
Use "yam-stick" in a sentence
"She immediately lifted up her yam-stick in the position the men throw their spears, and prepared to defend herself, until at last she quieted down on observing the fish-hook, and advanced a step or two and took it from me, evidently knowing the use of it."
"When the little girls are first taken out by their mothers they are instructed in the use of the yam-stick, with which the roots are dug up out of the earth."
"But the unfortunate wife occasionally makes the acquaintance of the heavy yam-stick in a very unpleasant, not to say serious, manner."