thrash out
US /θræʃ aʊt/
UK /θræʃ aʊt/

1.
discutere a fondo, risolvere
to discuss a problem or issue thoroughly in order to find a solution or reach an agreement
:
•
Let's thrash out the details of the new project tomorrow.
Domani discutiamo a fondo i dettagli del nuovo progetto.
•
They need to thrash out their differences before the meeting.
Devono risolvere le loro divergenze prima della riunione.