| Rattlebox 1. (n.) A toy that makes a rattling sound; a rattle. 2. (n.) An American herb (Crotalaria sagittalis), the seeds of which, when ripe, rattle in the inflated pod. 3. (n.) Any species of Crotalaria, a genus of yellow-flowered herbs, with inflated, many-seeded pods. Thesaurus Entries Klaxon, boiler factory, brokerage, brokerage house, brokerage office, bucket shop, bull-roarer, bunco game, catcall, cherry bomb, clack, clacker, clapper, con game, confidence game, cracker, cricket, firecracker, goldbrick, horn, noisemaker, rattle, rattlebox, shell game, siren, skin game, snapper, steam whistle, stockbrokerage, thimblerig, thimblerigging, ticktack, whistle, whizgig, whizzer | ![]() |