until Kingdom come

colloquial

Until death, until the afterlife. / (colloquial) At overly frequent intervals.

Japanese Meaning

死ぬまで、またはあの世に至るまで / 非常に頻繁に、極めて多くの間隔で

They pledged to protect the old oak until Kingdom come.

彼らは死ぬまで古い樫の木を守ると誓った。

Sense（1）

Until death, until the afterlife.

I will love you until Kingdom come.

Sense（2）

(colloquial) At overly frequent intervals.

He pestered me until Kingdom come about the concert.