知るもんか

how should I know

→ 知る

phrase Rare #30,005

how should I know A blunt, dismissive way to say that you do not know or do not care. It is often rude or confrontational. The ending もんか adds emphatic rhetorical force.

JA: 明日雨が降るかなんて、知るもんか。

EN: How should I know whether it will rain tomorrow?

知るもんか。

How should I know?

そんなこと知るもんか。

How should I know?

知るもんか

How should I know?

— オープン・ユア・アイズ (1997)

けど知るもんか

How should I know?

— ムーンライズ・キングダム (2012)

知るもんか！

How the hell should I know!

— ジョジョ・ラビット (2019)

こんな汚らわしいユダヤ人なんか知るもんか

I don't give a damn about any filthy Jew like that.

— ジョジョ・ラビット (2019)