through the mill

go through the mill

To experience the suffering or discipline necessary to bring one to a certain degree of knowledge or skill, or to a certain mental state.

grist for the mill

Something that is useful or that creates a favorable opportunity.

grist to the mill

Alternative form of grist for the mill.

pill mill

A clandestine operation where a medical worker illicitly offers prescription medication to patients in exchange for bribes.

rumor mill

A process in which a group or network of persons originate or promulgate gossip and other unsubstantiated claims.

trouble at mill

Problems outside the household, especially in the workplace.

water to one's mill

That which energizes or stimulates one.