Throw (somebody) under the bus
11/12/18 Throw (somebody) under the bus
1. To exploit someone’s trust for one’s own purpose, gain, or agenda; to harm someone through deceit or treachery.
The investment company threw its clients under the bus when it chose to redirect their hard earned money into various Ponzi schemes that benefited only a few board members at the top.
2. To avoid blame, trouble, or criticism by allowing someone else to take responsibility.
Tommy was caught with the marijuana in his backpack, but he threw me under the bus and said it belonged to me.