(idiomatic, chiefly UK) Alternative form of grist for the mill

(euphemistic) To have sex with someone.

Alternative form of to one's knowledge

Good qualities do not get rewarded automatically.

(idiomatic, Christianity) Relating to a Christian conversion, recommitment, or associated ritual, especially public confession. / (idiomatic, US) Relating to a similar secular ritual.

Alternative form of throw caution to the wind

plural of number needed to harm

(said of objects) To become, to degenerate into. / To consult for advice or help. / To start to do or to use something in an attempt to deal with a difficult and unpleasant situation.

To the extent of one's limited knowledge of the facts.

(Britain) of a necessary standard of quality for its intended use