thrash out is a verb meaning "discuss vehemently in order to reach a solution or an agreement". It carries one recorded sense.
discuss vehemently in order to reach a solution or an agreement
“The leaders of the various Middle Eastern countries are trying to hammer out a peace agreement”
Definitions, synonyms and semantic relations for thrash out come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.