( BrE ) ( NAmE not say boo to ˈanyone )
to be very shy or gentle :
He's so nervous he wouldn't say boo to a goose.
( BrE ) ( NAmE not say boo to ˈanyone )
to be very shy or gentle :
He's so nervous he wouldn't say boo to a goose.
Oxford Advanced Learner's English Dictionary. Оксфордский английский словарь для изучающик язык на продвинутом уровне. 2005