ズドン

ズドン, ずどんzudon

adverb

  1. with a bang (of a gun)
  2. with a boom (of artillery)
  3. with a thud
  4. with a thump

Study it in Yanamino

Data from JMdict, KANJIDIC2 (EDRDG), KanjiVG, CC-CEDICT and Make Me a Hanzi. Sources and licences