mad as a March hare

Adjective

colloquial not-comparable

(simile, colloquial) Crazy, demented.

Japanese Meaning

非常におかしく、常軌を逸した状態を表す比喩表現

After hearing the unfair verdict, she was mad as a March hare and couldn't stop ranting.

不公正な判決を聞いた後、彼女はまるで頭がおかしくなったかのように叫び続けた。

Sense（1）

(simile, colloquial) Crazy, demented.