You may have noticed that the Internet is all a-Twitter (pun intended) over super-injunctions (a/k/a superinjunctions), but despite that, it may well be that you have no idea just what a super injuntion is, nor why you should care. If you are from the U.S. you’re even less likely to know, and so if you are asking yourself “What is a super-injunction?”, well, we’ll explain.