about-face on (something)(redirected from about-face on something)
about-face on (something)
1. verb To completely reverse one's opinion, position, or course of action regarding some issue, especially very suddenly. The senator seems to have about-faced on the tax proposal, suddenly throwing his support behind the measure. Once she saw how much money the company stood to lose, the CEO about-faced on her decision. Once she saw that I'd gotten a C- on my Geometry test, Mom about-faced on her decision to let me go to the party.
2. noun A complete and typically sudden reversal of opinion or action. The senator's about-face on the tax proposal has taken many by surprise. Based on the reactions we got from test audiences, we need to do an about-face on the movie's plot. I highly doubt these new ads will make anyone do an about-face on their candidate of choice.
See also: on
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