パタリ

パタリ, ぱたりpatari

adverb

  1. with a clink
  2. with a soft thud
  3. with a faint snap (e.g. of a book closing)
  4. suddenly
  5. all of a sudden

Study it in Yanamino

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