a twig or flexible rod; hence, a hurdle made of such rods.-a rod laid on a roof to support the thatch.-a naked fleshy, and usually wrinkled and highly colored, process of the skin hanging from the chin or throat of a bird or reptile.-barbel of a fish.-the astringent bark of several australian trees of the genus acacia, used in tanning; -- called also wattle bark.-the trees from which the bark is obtained.  see savanna wattle, under savanna.-to bind with twigs.-to twist or interweave, one with another, as twigs; to form a network with; to plat; as, to wattle branches.-to form, by interweaving or platting twigs.