hammer out
• laboriously work out the details of a plan or agreement.
• "a deal was being hammered out with the Dutch museums"
Similar:
thrash out,
work out,
agree on,
sort out,
decide on,
bring about,
effect,
produce,
broker,
negotiate,
reach an agreement on,
come to terms about,
come to a decision on,
form a resolution about,
Opposite:
fail to agree about,
• play a tune loudly or clumsily, especially on the piano.
