on one's tail

Prepositional phrase

also figuratively

(also figuratively) following (someone) closely

Japanese Meaning

（誰かの）すぐ後ろについて追いかける、付きまとうことを意味する。 / （特に比喩的に）常に人の行動について回る様子を表す。

A driver hates having someone on one's tail during a long, rainy night.

運転手は、長い雨の夜に誰かがすぐ後ろにぴったりついてくるのを嫌う。

Sense（1）

(also figuratively) following (someone) closely

The police was on my tail for half an hour.