shift (your) ground

if you shift your ground in an argument or a discussion, you start to express a different opinion.

He's impossible to argue with because he keeps shifting his ground.

• be out of mind
• be out of mind with
• be out of mind with boredom
• be out of mind with [boredom/fear/worry etc.]
• be out of mind with fear
• be out of mind with worry
• be out of order
• be out of place
• be out of pocket
• be out of someone's hands
• be out of someone's league
• be out of someone's way
• be out of sorts
• be out of the ark
• be out of the loop
• be out of the picture
• be out of the question
• be out of the way
• be out of the wood
• be out of the woods
• be out of this world
• be out of touch
• be out of touch with
• be out of touch with something
• be out of tree