1. A name given to a pony whose real name is not known.
2. A collective group of bronies over the Internet dedicated to eliminating zombies, trolls, hackers, terrorists and pedophiles, by uploading pictures of ponies to wherever they please.
3. Alternative spelling for anonymous.
We all believe in the true spirit of Aponymous, where the remainder of our race can finally come together and spread joy and happiness online, without the interference from Princess Celestia.