The phrase "in wink" is a colloquial expression that refers to something happening quickly or in an instant. There are several synonymous phrases that can be used in its place, including "in a flash," "in the blink of an eye," "in no time," "in an instant," "in a jiffy," "like lightning," and "in a split second." These phrases all suggest that the action or event being described takes place very quickly or unexpectedly. They are commonly used in everyday conversations to convey a sense of urgency and spontaneity, and may also be used in more formal or professional contexts to express the same ideas.