Ottegender is an orientationgender that is tied to the idea of being an otter, or a gender that can only be described as being an otter. Otter is a neologism that's used by achillean men who don't fit into feminine or masculine ideas of gender presentation, this can have an influence in how said people perceive and experience their gender.
History
The term was officially coined in on August 18 of 2021 [1], although it's fairly possible it's been thought out before that.