Look up hang ten in Wiktionary, the free dictionary.
Hanging Ten is a surfing maneuver and is considered one of the most impressive and iconic stunts one can perform with a surfboard. Hanging ten is when the surfer rides the top of the wave flicking the tail out. Usually this can only be done on a heavy longboard.
Hang Ten can also refer to a skateboard move called Hang Ten Nosemanual or to a BMX flatland move. It can also refer to when a basketball player dunks the ball and hangs onto the hoop.