do a U-turn

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do a U-turn

1. Literally, to make a sudden 180-degree turn, such that one or one's vehicle is quickly facing or moving in the opposite direction. Once I realized I was going the wrong way, I had to do a U-turn at the next light. When I saw Mary in the hallway, I did a U-turn and went back the way I came.
2. By extension, to make any sudden and drastic reversal, as of opinion, policy, intention, fortune, trend, etc. After a huge public outcry about the controversial program, the president quickly did a U-turn and announced that he would not support the plan. The tech giant typically has unyielding success, but they did a major U-turn with the disastrous unveiling of their latest gadget.
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.
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