A heelflip is a popular skateboarding trick where the rider flips the board using their back foot. To perform a heelflip, the skater pops the tail of the board down while dragging the front foot up towards the nose. As the front foot reaches the top, the skater flicks it outward with the heel, causing the board to spin in the air. This trick is similar to a kickflip, but the key difference is the flicking motion. The heelflip can be performed on flat ground or while jumping off obstacles, making it a versatile move in a skater's repertoire. Mastering the heelflip requires practice and balance.