A derogatory term saved for people claiming and openly stating that they are a part of anonymous. Usually idiots who want to be a part of anonymous because they think it would be cool or that they could use anonymous as a personal army. Will often quote the "catchphrase of anonymous, "Because none of us are crueler than all of us."
When used incorrectly, addresses all members of anonymous
Mr. Legion was an anonofag for trying to manipulate anonymous.