A new exploit found on Twitter allows anyone to boost the number of followers that they have, just by clicking a button over and over again.
The trick was discovered by Karnesh Mehrah, and spotted by Gizmodo, and allows you to gain followers just by clicking a button over and over again. It's like playing Cookie Clicker except you'll be gaining a number that you can then show off to anyone who cares - which probably isn't that many people, but still...
You are using this bug at your own risk. Twitter doesn't tend to take too kindly to people boosting their follower numbers, so there is a chance of getting your account suspended. The bug currently works, but Twitter could catch on at any time and fix it.