In The Wink Of An Eye Meaning

(idiomatic) instantaneously, extremely quickly

Example: 1900, L. Frank Baum, The Wonderful Wizard of Oz Chapter 23
  "The Silver Shoes," said the Good Witch, "have wonderful powers. And one of the most curious things about them is that they can carry you to any place in the world in three steps, and each step will be made in the wink of an eye. All you have to do is to knock the heels together three times and command the shoes to carry you wherever you wish to go."