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 ) .
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 ) .