In the Lord of the Flies what game do the boys play after spearing the wild boar?

After the boar charged the boys and escaped with a wound to its snout the boys reenacted the event. Robert played the part of the boar but the game quickly spiraled out of control. The boys held Robert's arms and legs while Jack seized his hair. Ralph jabbed him with a spear and all the boys fought to get close, to squeeze and hurt Robert's vulnerable flesh. The 'game' ended when Jack pretended to cut Robert's throat, leaving Robert physically hurt, frightened and sobbing.