feed (one) to the lions

To sacrifice someone to ruin, destruction, or hostility from others, especially for one's own benefit or survival. He cares nothing for the people he works with and is willing to feed them to the lions if it means his stock might increase a bit. In the face of the scandal, the administration has been feeding to the lions anyone they can use to deflect blame from themselves. I'm sorry, but I had to feed you to the lions. My album comes out next week, and I can't afford any bad PR.