like crazy

colloquial

(simile, colloquial) To a great or excessive degree; with great speed, output, enthusiasm, etc.

Japanese Meaning

非常に、極端に / 尋常でないほど、めちゃくちゃに / ものすごい速度や情熱を伴って

He worked like crazy to finish the project before the deadline.

彼は締め切り前にプロジェクトを終わらせるために必死に働いた。

Sense（1）

(simile, colloquial) To a great or excessive degree; with great speed, output, enthusiasm, etc.

She stayed late, working like crazy to get the project done before the deadline.