A NOD AND A WINK


Meaning of A NOD AND A WINK in English

a nod and a wink | a ˌnod is as good as a ˈwink

used to say that a suggestion or a hint will be understood, without anything more being said :

Everything could be done by a nod and a wink.

Oxford Advanced Learner's English Dictionary.      Оксфордский английский словарь для изучающик язык на продвинутом уровне.