User blog comment:Icey778/Rap Battles of Excellence Redux 7: Doflamingo vs Hisoka/@comment-24322797-20151115225135/@comment-5412428-20151115225230

Hisoka was mollested by the Joker as a child and looks up to him because of it and Doflamingo is a gay man with a homosexual fetish for flamingos, hence the name "Do Flamginos"