shift your ground
shift (one's) ground
To adopt a different viewpoint or opinion. I was shocked when Liz suddenly shifted her ground and started seeing things as I did.
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.
shift your ground
say or write something that contradicts something you have previously written or said.Farlex Partner Idioms Dictionary © Farlex 2017
shift your ˈground
(usually disapproving) change your opinion or position, especially during an argument or a discussion: He’s shifted his ground on many major policy issues. OPPOSITE: stand fast/firmFarlex Partner Idioms Dictionary © Farlex 2017