n. 嘎嘎匣(玩具)

[ noun ]
any of various plants of the genus Crotalaria having inflated pods within which the seeds rattle; used for pasture and green-manure crops
<noun.plant>

Rattlebox \Rat"tle*box`\ (r[a^]t"t'l*b[o^]ks`), n.
1. A toy that makes a rattling sound; a rattle.

2. (Bot.)
(a) An American herb ({Crotalaria sagittalis}), the seeds
of which, when ripe, rattle in the inflated pod.
(b) Any species of {Crotalaria}, a genus of
yellow-flowered herbs, with inflated, many-seeded
pods.