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English definition of “know your stuff”

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know your stuff

( also UK old-fashioned know your onions) informal
C2 to have good practical skills and knowledge in a particular activity or subject
Translations of “know your stuff”
in Chinese (Traditional) 精通業務,在行…
in Russian знать свое дело…
in Turkish işini iyi bilmek, konusuna hâkim olmak…
in Chinese (Simplified) 精通业务,懂行…
in Polish znać się na rzeczy…
(Definition of know your stuff from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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