Mbh 8.83.1b

All his steeds also, O king, were slain, and his car too was reduced to atoms by that falling weapon. As regards Duhshasana himself, his armour and ornaments and attire and garlands were all displaced, and he began to writhe, afflicted with agony. Endued with great activity, Bhimasena then recollected, in the midst of that terrible battle and standing as he did amid many foremost warriors of the Kuru army, all the acts of hostility (done towards the Pandavas) by thy sons. The mighty-armed Bhima of inconceivable feats, O king, beholding Duhshasana (in that plight), and recollecting the seizure of Draupadi's tresses and her disrobing while she was ill,--indeed, the innocent Bhima, reflecting also upon the diverse other wrongs inflicted on that princess while her husbands sat with faces turned away from the scene, blazed up in wrath like fire fed with libations of clarified butter. Addressing Karna and Suyodhana and Kripa and Drona's son and Kritavarma, he said, "Today I shall slay the wretched Duhshasana. Let all the warriors protect him (if they can)." Having said this, Bhima of exceeding strength and great activity suddenly rushed, from desire of slaying Duhshasana. Like a lion of fierce impetuosity rushing towards a mighty elephant, Vrikodara, that foremost of heroes, rushed towards Duhshasana in that battle and attacked him in the very sight of Suyodhana and Karna. Jumping down from his car, he alighted on the ground, and fixed his eyes steadfastly on his fallen foe. Drawing then his whetted sword of keen edge, and trembling with rage, he placed his foot upon the throat of Duhshasana, and ripping open the breast of his enemy stretched on the ground, quaffed his warm life-blood. Then throwing him down and cutting off, O king, with that sword the head of thy son, Bhima of great intelligence, desirous of accomplishing his vow, again quaffed his enemy's blood little by little, as if for enjoying its taste.