English

Definition of bull session noun from the Oxford Advanced Learner's Dictionary

 

bull session

 noun
noun
BrE BrE//ˈbʊl seʃn//
 
; NAmE NAmE//ˈbʊl seʃn//
 
(North American English, informal)
 
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an occasion when people meet and talk in an informal way Word Origin1920s: bull from bull, stupid or nonsense talk.
See the Oxford Advanced American Dictionary entry: bull session