Twifakes is a spam website created by Cairo Noleto @caironoleto and Cleiton Francisco @cleitonfco. I’m sure they’ll be happy to answer any questions you may have about it.
You may have seen the website at http://twifakes.heroku.com/ which promises to tell you how many “fake” Twitter followers you have.
Do not authorise this website. It tweets without your permission and there’s no telling whether it may do other damage to your account.