What is the Meaning of the Idiom
DIG IN YOUR HEELS?

Definition:

refuse to do something, even though other people are trying to persuade you

Examples:

1. Everyone else in the family agrees that we should have a nice dinner for Mom’s birthday. I don’t know why, but Maria is digging in her heels and she says if we go ahead with that plan, she and her family won’t attend.

2. At first, he said the price was negotiable. But then, when she tried to discuss the price, he dug in his heels and said the price was firm, and he wouldn’t talk about it.

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