American English

Definition of gung-ho adjective from the Oxford Advanced American Dictionary

 

gung-ho

 adjective
adjective
NAmE//ˌɡʌŋ ˈhoʊ//
 
(informal) (disapproving)
 
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too enthusiastic about something, without thinking seriously about it, especially about fighting and war Many people found her gung-ho attitude to the war deeply offensive.
See the Oxford Advanced Learner's Dictionary entry: gung-ho