a nod is as good as a wink

a nod is as good as a wink

A small sign is enough to a person who is ready to act. I'm prepared to start on this project once you all are ready, so a nod is as good as wink to get me going.
See also: good, nod, wink

nod's as good as a wink

An acknowledgement of the true but hidden meaning of an expression or statement. Primarily heard in UK, Australia. Even though you said otherwise, I know you really have no interest in going out tonight—a nod's as good as a wink.
See also: good, wink