There's a million and one Twitter apps available for the iPhone, but do any let you do a poo on tweets you dislike? Surprisingly, yes - and here I was thinking teenage roughnecks couldn't afford an iPhone contract.
Bird Turd turns Twitter into a game, with the official bio of the app explaining
"In Bird Turd, YOU are the bird. And when you see a tweet you don‘t like, YOU CAN POOP RIGHT ON IT."