used for telling someone that you are not going to give them details or information about something
‘How in the world did you persuade her?’ ‘Never you mind.’
Thesaurus: ways of telling or not telling secretssynonym
Main entry: never
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never you mind
informal
— used to tell someone that you will not be answering a question
“Just how old are you anyway?” “Never you mind!”
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Main Entry: ↑mind
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ˌnever you ˈmind idiom
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‘Who told you about it?’ ‘Never you mind!’
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Never you mind how I found out— it's true, isn't it?
Useful english dictionary. 2012.