wink at

1.
InternationalUSUKneutralinformal
- To close and open one eye briefly as a deliberate signal, often to convey complicity, flirtation, or shared understanding.
- To make a brief, deliberate eye gesture to communicate a hidden message or secret acknowledgement.
2.
InternationalUSUKneutralformalinformal
- To tolerate, ignore, or deliberately fail to take action against something considered improper or unlawful; to condone tacitly.
- To allow a behaviour or situation to continue by deliberately refraining from intervening or enforcing rules.

Examples: