The Duuuval Donut is a very intimate act bestir two lovers. In which, the male put a sprinkled donut on his erect Unit. He then proceeds to fuck partner in the ass excessively, said partner then consumes said donut, whilst performing fellatio and screaming Duuuval at climax.
Boys who enjoy yaoi (a genre in Japan that contains sexual and/or romantic relations between two men); literally translates to "rotten boy"; corresponding female : fujoshi