Here's a breakdown of the phrase:
* Ready: Meaning prepared, quick, or easy.
* Tongue: Refers to the ability to speak.
* Hers: Indicates that this characteristic belonged to a female.
Examples of how the phrase could be used:
* "She was a skilled negotiator, a ready tongue was hers."
* "Her wit was sharp, and a ready tongue was hers, so she could always come up with a clever retort."
It often implies that the person is intelligent, persuasive, and possibly even a bit mischievous.