User blog comment:Awaikage/Chapter 792 - The Heavenly Yaksha has defeated Doflamingo/@comment-5398287-20150702225042

Doflamingo must've defeated himself after eating a rice ball because he was angry. The poor guy was hit by The Conversorry, so it's no wonder he was shouting "ON" so much near the end. He even had his voice stolen at one point.