An individual who waits until the last possible moment before going to the toilet for a shit, thus not having to waste any energy in expelling said turd as it explodes out all by it's self.
What do you mean, you need a toilet now? you should have gone earlier, you lazy shitter!!
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