Tip somebody the wink - Idioms by The Free Dictionary
tip somebody the wink
tip (one) the wink
dated To furtively provide one with a helpful piece of information; to give one a secret tip. Primarily heard in UK, Australia. Tip me the wink if you see the teacher coming! Hugh said the jockey tipped him the wink about the outcome of the race, but I don't buy it.
tip somebody the ˈwink,
tip the ˈwink to somebody (British English, informal) give somebody secret information that they can use to gain an advantage for themselves: ‘How did you know the job was available?’ ‘A friend tipped me the wink and so I telephoned immediately.’