[n] - a dive in which the abdomen bears the main force of impact with the water[v] - do a belly-flop
belly flopper noun a dive in which the abdomen bears the main force of impact with the water verb dive so that one hits the water with one`s belly
an awkward, usually unintentional dive in which the front of the body strikes the water horizontally, the abdomen or chest bearing the brunt of the impact. · a maneuver with a sled in which the sledder runs with the sled to gain momentum and jumps forward to land on top of the sled as it moves through the snow.