not know the half of it Definition in the Cambridge English Dictionary
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Definition of “not know the half of it” - English Dictionary

Definition of "not know the half of it" - British English Dictionary

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not know the half of it

(also have not heard the half of it) informal If someone does not ​know the half of it, they ​know that a ​situation is ​bad but do not ​know how ​serious it is: "I ​hear things aren't going too well at ​work." "You don't ​know the half of it!"
(Definition of not know the half of it from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
Translations of “not know the half of it”
in Chinese (Simplified) 不知道更严重的情况…
in Chinese (Traditional) 不知道更嚴重的情況…
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