[pitching new doctor who villain] they're called the pisslords. they're like the timelords, but for piss. basically what they do is, they can control the flow of piss, so if you're pissing and one of em comes around they can make the piss go back up into you. so anyway the big picture is, they're taking all the piss that ever got pissed and putting it into a big great ball of piss they got floating in space, and then they're gonna drop it on london. i'm calling this one "the piss of the doctor"
@sarahzedig does the shark of piss also appear 
@KC @sarahzedig I'm swimming around in the big ball of piss
@KC @sarahzedig there's an episode where the Doctor lands in some place where people started getting attacked by sharks all of a sudden. But they're not regular sharks, they're piss sharks, and they're just attacking people for their piss. So the Doctor has to figure out what's going on and finds a way to get piss for the sharks so they don't have to attack the people. But it turns out these piss sharks were actually engineered by the pisslords to harvest piss and this ends up just helping them.