The airwalk is a skateboarding

Skateboarding

Skateboarding is an action sport which involves riding and performing tricks using a skateboard.Skateboarding can be a recreational activity, an art form, a job, or a method of transportation. Skateboarding has been shaped and influenced by many skateboarders throughout the years. A 2002 report...

 trick invented in 1983 by Tony Hawk

Tony Hawk

Anthony Frank "Tony" Hawk , nicknamed "The Birdman" is an American retired professional skateboarder and actor. Hawk gained significant fame for completing the first 900 as well as his licensed video game titles distributed by Activision...

, who performed it on ramps and half pipes. In 1986, Rodney Mullen

Rodney Mullen

John Rodney Mullen is a professional freestyle and street skateboarder. He is widely acknowledged as one of the most innovative and influential street skaters in the history of skateboarding...

 invented the Ollie Airwalk, a flatground version of the Airwalk. The name Ollie Airwalk is often mistaken by the Ollie Airwalk trick in Tony Hawk's Pro Skater. In the version in the game, the skateboarder only kicks his/her legs off the board and doesn't grab the nose. This is not considered a "real" airwalk.

To perform the airwalk, the skateboarder grabs the nose of the skateboard

Skateboard

A skateboard is typically a specially designed plywood board combined with a polyurethane coating used for making smoother slides and stronger durability, used primarily for the activity of skateboarding. The first skateboards to reach public notice came out of the surfing craze of the early 1960s,...

and kicks the front foot in front of the board and the back foot back of the board, resulting in a split kick while holding the nose. Some good skateboarders can kick it the other way while in the same aerial and make a walking motion.

A 360-degree spinning airwalk is also known as a Malone Airwalk, or simply a Malone.