The title means The Papantla Fliers. It is an ancient ritual, maybe an old craze that became institutionalized in the Mexican town of Papantla.
The fact is that these guys, which I saw in San Francisco more than 20 years ago, tie themselves upside down from the top of a very tall pole and start spinning in high circles of descent until they reach the ground.
They are attached to the mast with ropes at their ankles.
Quite a ride.