She could talk the hind leg off a donkey

Meaning

A way to describe an incredibly persuasive or talkative person. They have the gift of gab and can convince almost anyone of anything.

Admiring, hyperbolic

Used in a sentence

• You better watch out, she could talk the hind leg off a donkey if you let her.
• My aunt is so convincing, she could talk the hind leg off a donkey.
• We needed a better deal, and thankfully, she could talk the hind leg off a donkey.