bend someone's ear
US /bɛnd ˈsʌmˌwʌnz ɪər/
UK /bɛnd ˈsʌmˌwʌnz ɪər/

1.
dar la lata, dar la tabarra
to talk to someone for a long time, especially about a problem or to ask for a favor
:
•
I need to bend your ear about my new business idea.
Necesito darte la lata con mi nueva idea de negocio.
•
He always tries to bend my ear when he has a problem.
Siempre intenta darse la lata conmigo cuando tiene un problema.