run into the ground
Pursue a topic until it has been thoroughly discussed or exhausted, as in They've run the abortion issue into the ground.
Ruin or destroy, as in During her brief time as chief executive Marjorie just about ran the company into the ground. Both usages allude to pushing something so far that it is, in effect, buried. [Early 1800s]
Words nearby run into the ground
run in place,
run in the blood,
run interference,
run into,
run into a stone wall,
run into the ground,
run its course,
run like clockwork,
run of luck,
run of the mill,
run off