n.1.(Bot.) A climbing shrub (Berchemia volubilus) of the Southern United States, having a tough and pliable stem.
He was in form and spirit like a supple-jack, . . . yielding, but tough; though he bent, he never broke.
- W. Irving.
Webster's Revised Unabridged Dictionary, published 1913 by G. & C. Merriam Co.
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