你笑个der英语怎么说

"Laughing derisively" 或 "sneering" 是表示笑个der的常用英文表达。这两个词都指的是带有轻蔑、嘲弄意味的笑声。
"Derisive" 是指轻蔑的，来自拉丁文 "deridere"，意思是嘲弄、讥笑。"Sneering" 是指带有不屑的神情的，来自古英文 "sneoran"，意思是嘲笑。
例句：
The audience laughed derisively when the comedian made a joke about the president. (当喜剧演员调侃总统时，观众笑个der。)
He sneered at her suggestion, clearly showing that he thought it was ridiculous. (他对她的建议冷嘲热讽，明显表示他认为这是荒谬的。)