kingdom come

noun

1. the next world; the hereafter; heaven.

2. Informal.,  a place or future time seemingly very remote.

   You could keep it up till kingdom come.

kingdom come

noun

1. the next world; life after death

2. informal,  the end of the world (esp in the phrase until kingdom come )

3. informal,  unconsciousness or death

kingdom come

1. The next world; the afterlife: “The superpowers have enough nuclear warheads to blow the entire world to kingdom come.” An allusion to the Lord's Prayer: “Thy kingdom come, thy will be done.”

Word History and Origins

Origin of kingdom come¹

First recorded in 1775–85; extracted from the phrase Thy kingdom come in the Lord's Prayer