I won't flog a dead horse.

You're flogging a dead horse.

Tom was flogged three times.

There is now less flogging in our great schools than formerly, but then less is learned there; so that what the boys get at one end they lose at the other.

Twitter is where reporters are hanging out all day and flogging their stories.

Then Pilate took Jesus and had Him flogged. The soldiers twisted together a crown of thorns, put it on His head, and dressed Him in a purple robe. And they went up to Him again and again, saying, “Hail, King of the Jews!” and slapping Him in the face.

The captain had the unsuccessful mutineers flogged.