‖ rimbomborare—1.|rɪmˈbɒmbəʊ| [It.; cf. rimbomb v.] A booming roar; a resounding or reverberation. 1873Geo. Eliot Let. 20 June (1956) V. 422 Shallow undiscriminating scorn, made to seem profound by a ‘rimbombo’ of rhetoric (like the singing into big jars to make demon-music in an opera).