When your girlfriend takes a dump in her hand and lovingly strokes your manhood to ejaculation.
So, my girl had Chipotle yesterday and worked up a wicked feces... so rather than waste the dookie baby that spilled forth from her loins, I recommended she give me a sloppy monkey slipper.
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