コツン

コツン, こつんkotsun

adverb · noun

  1. with a bonk
  2. with a thump
  3. with a klunk
  4. with a rap

Study it in Yanamino

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