not say boo Meaning in the Cambridge English Dictionary
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Meaning of “not say boo” in the English Dictionary

"not say boo" in British English

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not say boo

US informal to say nothing: You didn't say ​boo to me about going to ​your mother's this ​weekend. US (also be afraid to say boo, UK not say boo to a goose) informal to be very ​nervous and ​easilyfrightened
(Definition of not say boo from the Cambridge Advanced Learner’s Dictionary & Thesaurus © Cambridge University Press)
Translations of “not say boo”
in Chinese (Simplified) 什么也没说,一言未发, 非常胆小…
in Chinese (Traditional) 甚麽也沒說,一言未發, 非常膽小…
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