ザックザク

ザックザク, ザックザック, ざっくざく, ざっくざっくzakkuzaku

adverb

  1. crunch crunch
  2. thud thud
  3. tramp tramp

Study it in Yanamino

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