tub-thumping I. \ˈ ̷ ̷ˌ ̷ ̷ ̷ ̷\noun : an act or instance of engaging in impassioned or ranting utterance < a terrific job of tub-thumping for a novel — Bennett Cerf > II. adjective : marked by tub-thumping < a tub-thumping socialist — Anthony West >