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English definition of “cold fish”

cold fish

noun [S] uk   us  
someone who seems unfriendly and who does not share their feelingsNot being friendlyNot saying muchBlunt and direct in speech and behaviour
(Definition of cold fish from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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Translations of “cold fish”

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to press something quickly and quite hard between two objects, especially sharp objects such as teeth or nails

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