Someone who is anongender knows that they have a gender identity but doesn't label it or would prefer to not have a label. For example, someone whose identity would be classified as a demigirl, but they'd prefer not to use a label.
The term comes from the greek word anonymos, meaning unnamed. I'm sorry if this article doesn't make much sense, but I hope it helps someone.
|“||The other day I was on LGBTA wiki, where they like to make up identities to mock us enby folk. However one of the labels seemed to make sense to me, so I've given it an actual name and a flag.||”|
–this page as originally created, AllenTheAsexual