One character slapping their hands against the ground while the other character is lying on their back, effectively pinning them. Commonly in a kneeling and arm support position. It is basically the lying down version of kabedon. Variants include on ground, on floor, on bed, on table/on desk, etc. Use kabedon if it's not distinguishable whether the character is standing or lying. Use yukadon on viewer for a yukadon in first person.