throwoneself on the mercy of some authority

throw oneself at the mercy of some authority & throwoneself on the mercy of some authority & throw oneself (up)on someone's mercy

Fig. to seek mercy from a court of law, especially at one's sentencing for a crime; to seek help from an official or institution. •

He pleaded guilty and threw himself at the mercy of the court.

•

It did no good to throw myself on the mercy of the State Department.

•

Please don't! I throw myself upon your mercy!