kick in the pants

Noun

informal

(informal) A forceful reminder to start or get going.

Japanese Meaning

行動を促す強い後押し、始動のための強い催促

That performance review was the kick in the pants he needed to finally finish the project.

あの人事評価は、彼がようやくプロジェクトを完成させるために必要だった目を覚ますきっかけだった。

Sense（1）

(informal) A forceful reminder to start or get going.

That kid needs a kick in the pants to get his homework done today.

kicks in the pants

（ plural ）