Supple-jack
Sup´ple-jack`
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. |
Webster's Revised Unabridged Dictionary, published 1913 by G. & C. Merriam Co.