run like the wind

To run like the wind means to run very, very fast. If you think of the wind, it goes extremely fast even if you dont notice it. If you are running like the wind, it is more like you are running with the wind, in that you are so fast others only see you as being wind because they hardly notice you. It is another way of exaggerating exactly how fun you should be running. The phrase can also be used for other instances of going fast, rather than just the activity of running.