What is contactless drag?

A contactless drag is something special. It doesn't come around very often, only at the end of a j. So what is a contactless drag, it is when your joint gets to the end and it becomes a stinging roger instead of it burning your lips with the hot roach, you put the joint about 1-2 cm away from your mouth and suck the j without any contact. And that my friends is a contactless drag.