RATAPLAN Meaning of RATAPLAN in English /rat'euh plan"/ , n. , v. , rataplanned, rataplanning . n.1. a sound of or as of the beating of a drum. v.i.2. to produce such a sound. [ 1840-50; ] Random House Webster's Unabridged English dictionary. Полный английский словарь Вебстер - Random House . 2012