turn 180 degrees

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turn 180 degrees

1. Literally, to turn and face the opposite direction. I was going to go to the park, but when I saw those dark clouds roll in, I turned 180 degrees and headed back home.
2. To make a big change in one's position, opinion, lifestyle, etc. A: "Can you believe that Sam quit his job at the firm?" B: "No, he really turned 180 degrees on being a paralegal!"
See also: 180, degree, turn