ケタケタ

ケタケタ, けたけたketaketa

adverb

  1. with a loud, shrill laugh
  2. with a cackle
  3. (laughing) wildly

Study it in Yanamino

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