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. A lawless and dangerous set, men of spunk, and spirit, and power, both of mind and body. (Prof. Wilson)
Origin: Gael. Spong, or Ir. Sponc, tinder, sponge; cf. AS. Sponge a sponge (L. Spongia), spon a chip. Cf. Sponge, Punk
Alternative forms: sponk.