The least desireable form of a blumpkin (as if any are particularly desireable) for the giver --- That which takes place after an especially large amount of Taco Bell has been consumed by the blumpkin-receiver
During a particularly rancid TacoBellumpkin, she received a splash of partially-digested Chalupa right in the face.
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