do an about-face on (something)
(redirected from does an about face on something)do an about-face on (something)
To completely reverse one's opinion, position, or course of action regarding some issue, especially very suddenly. The senator seems to have done an about-face on the tax proposal, much to the surprise of his party. Once she saw how much money the company stood to lose, the CEO did an about-face on her decision.
See also: on
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