the gift of gab
US /ðə ˌɡɪft əv ˈɡæb/
UK /ðə ˌɡɪft əv ˈɡæb/

1.
the ability to speak easily and persuasively
:
•
He has the gift of gab and can talk his way out of any situation.
•
Her success as a salesperson is largely due to her amazing gift of gab.