The swaying movement that anyone will do while waiting in a line. Includes looking at the gum rack, picking up a magazine, touching all the chocolate bars etc.
Jon was not committed to the line. Instead of being 3 feet in front of the person behind him, he was doing the floaty dance in which he read all the labels on the shampoo bottles, and touched all the tic tacs on the side rack. He even left his shoe in the line and went to walk around for another 19 minutes.
The floaty feeling you get in your head when you have just eaten Mexican food. It feels like the best thing that has ever naturally happened to your head. Your brain becomes gently surrounded and cushioned by fluffy clouds. You might be having dinner with friends and notice your head is floating away, metaphorically speaking. Just relax, it was meant to happen.
Hey, I'm in the mood for Mexican food tonight because it's delicious and I know at the same time I will most likely experience floaty head.