是个疯子

is a crazy person

→ 是
phrase Rare #13,500
is a crazy person Used to describe someone as crazy or irrational; it can sound insulting.
CH: 他居然一个人爬上那座山,真是个疯子。
EN: He climbed that mountain alone—he's crazy.

黑鬼,你是个疯子

Nigger, you're crazy.

— 青春年少 (1998)

贝当是个疯子

Pétain was a madman.

— 再见,孩子们 (1987)

说不定我也确实是个疯子

Maybe I really am crazy.

— 蝴蝶梦 (1940)

他是个疯子

He's crazy.

— 好人寥寥 (1992)

我觉得他是个疯子

I think he’s crazy.

— 焦土之城 (2010)

是个疯子

He's crazy.

— 小萝莉的猴神大叔 (2015)

你是个疯子

You're crazy.

— 放牛班的春天 (2004)

他是个疯子!

He's crazy!

— 甘泉玛侬 (1986)

我想你是个疯子

I think you're crazy.

— 海上钢琴师 (1998)

"这家伙是个疯子"

This guy is a lunatic.

— 乔乔的异想世界 (2019)

因为他是个疯子

Because he's crazy.

— 月升王国 (2012)