ゲタゲタ

adverb, adverb taking the 'to' particle

boisterously laughing

Describes loud, hearty laughter, often in a group or unrestrained manner. Onomatopoeic.

• 彼かれの冗じょう談だんにみんながゲタゲタ笑わらった。

  Everyone laughed boisterously at his joke.

• ゲタゲタと笑わらう声こえが隣となりの部屋へやから聞きこえた。

  I could hear loud laughter from the next room.