Refers to either a laughter-filled sporting-match between an aging humorist and a pro-football player (both wif da same first name, by da way), or an equally-uproarious round of friendly verbal sparring between said two Daniels.
Depending on whether a "Drinkwater vs. Pinkwater" competition involved muscles or brains, either of them might have a comparable chance of being da winner.
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