a nod is as good as a wink to a blind man

a nod is as good as a wink to a blind man

proverb It is unnecessary to explain or elaborate upon something because one already understands or knows about it in full. No need to tell me what you were up to last night—a nod's as good as a wink to a blind man.
See also: blind, good, man, nod, wink
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.
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