do an about-face

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do an about-face

To suddenly and completely turn or change one's direction. This phrase can describe one's physical movement or a change in concept. She did an about-face and walked back up the steps once she saw that the subway wasn't running. Based on the reactions we got from test audiences, we need to do an about-face with the movie's plot.
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.

do an about-face

Also, do a flip-flop or one-eighty . Reverse one's opinion or course of action. For example, The board did an about-face on acquiring more land, or We expected Dad to do a flip-flop concerning our vacation plans, or They had relied on Jim to vote for Harry, but he did a one-eighty and cast his vote for the incumbent . The first term, alluding to the army command to turn around, dates from the first half of the 1900s, and the variants from the second half of the 1900s (the last refers to a 180-degree change of direction).
The American Heritage® Dictionary of Idioms by Christine Ammer. Copyright © 2003, 1997 by The Christine Ammer 1992 Trust. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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References in periodicals archive ?
Although condo development could carry risks if the residential market does an about-face, office development has been perceived as a property type carrying among the most uncertainty.
When a straying microtubule reaches an arrowhead, it does an about-face, Uyeda notes.
Every several hundred thousand years, the magnetic field emanating from inside the planet does an about-face, swapping North and South Poles for easons that geoscientists have yet to unravel.
On the average, the earth's magnetic field does an about-face, completely flipping direction, every 650,000 years.