• n. 疯子，躁狂者
• adj. 发狂的；狂热的；癫狂的

来自mania的形容词形式，后用做名词，指发狂的人。

maniac (adj.)

c. 1600, "pertaining to mania; insane," from French maniaque (14c.), from Late Latin maniacus, from Greek maniakos, from mania (see mania). Borrowed at first in French form; Latinized in English from 1727. The noun is attested from 1763, from the adjective.

1. The cabin looked as if a maniac had been let loose there.

小屋看上去像是被疯子在那撒过野一样。

来自柯林斯例句

2. My mum is turning into a religious maniac.

我妈妈正在变为一个宗教狂热分子。

来自柯林斯例句

3. That man is a homicidal maniac.

那人是个杀人狂。

来自柯林斯例句

4. He was driving like a maniac .

他发了疯似地开车。

来自《权威词典》

5. He drove like a maniac. We had one near miss after another.

他开车像个疯子, 我们一路上险象环生,与好几辆车险些相撞.

来自《简明英汉词典》