·adj Like a spine in shape; slender.
II. Spiny ·noun ·see Spinny.
III. Spiny ·adj Full of spines; thorny; as, a spiny tree.
IV. Spiny ·adj Fig.: Abounding with difficulties or annoyances.
n. i.q. Mountain Devil (q.v.). ...
Dictionary of Australasian Words Phrases and Usages by Edward E. Morris