Sponk n. See Spunk.
Spunk n. [Written also sponk.]
1. Wood that readily takes fire; touchwood; also, a kind of tinder made from a species of fungus; punk; amadou.
2. An inflammable temper; spirit; mettle; pluck; as, a man of spunk. [Colloq.]
A lawless and dangerous set, men of spunk, and spirit, and power, both of mind and body. --Prof. Wilson.