TUM-TUM Meaning of TUM-TUM in English I. ˈtəmˌtəm nounalso tum-ti-tum |təm(p)tē|təm( -s )Etymology: imitative: a reiterated tum or strumming II. intransitive verb : to make a tum-tum : strum Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012