sb. ? dial. [Echoic: cf. THUNGE; also Lancash. dial. ‘thwang, a great blow’ (Tim Bobbin, 1746).] A dull heavy sound, as of a blow with the fist, but with some resonance. So Thung v., intr. to make such a sound.

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1890.  Hall Caine, Bondman, x. The thud and thung of twenty hard fists on the table. Ibid. (1894), Manxman, V. iv. Nancy went back to her kneading…. Nancy looked up at her thumping and thunging. Ibid., VI. xii. He went roaring down the stairs, but came thunging up again in a moment.

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