cackle

1. V-I If someone cackles, they laugh in a loud unpleasant way, often at something bad that happens to someone else. (当坏事发生在他人身上时)不雅地大笑

The old lady cackled, pleased to have produced so dramatic a reaction. 老太婆刺耳地笑着，对这如此戏剧化的反应，她自己反倒还高兴。

2. N-COUNT Cackle is also a noun. 咯咯的笑声

He let out a brief cackle. 他发出短暂的咯咯声。