about face, to do an(redirected from to do an about face)
about face, to do an
To reverse a decision or change one’s opinion. The term comes from the American military command to turn 180 degrees at attention, dating from the mid-nineteenth century, and by 1900 was being used figuratively. A more recent colloquial usage is to do a 180, but it has not yet reached cliché status.
The Dictionary of Clichés by Christine Ammer Copyright © 2013 by Christine Ammer