Because Parkour doesn't have any moves, really. Parkour is defined by purpose. Please do'nt try to make new "moves" for Parkour, it doesn't need a name for every conceivable way over an object. There are about 10 recognizable (and already named) very common movements that are often used in Parkour, please note that just doing one (or more) of these moves doesn't automatically mean you are doing parkour, and trying to name a new move doesn't mean you are doing parkour.