Definition
The situation has reversed, with power shifting to the previously weaker party.
易位而处（形势反转）
They used to criticize us all the time, but now the boot is on the other foot.
他们过去总是批评我们，但现在情况完全反转了。
In these negotiations, we are no longer in the stronger position; they are, the boot is on the other foot.
在这些谈判中，我们不再处于强势地位；他们才是，形势已经逆转。
She rejected him initially, but many years later, the boot was on the other foot.
她最初拒绝了他，但许多年后，情况完全反转了。