Crypgender is where a person can identify or group themself in with cryptids. They can choose to not identify as anything but this, or identify as many things along with this. Neopronouns are not necessary with these people.
The flag colors are red, brown and black, red symbolizing non-conforming with most genders, brown symbolizing earthly aspects of the gender & cryptids, and finally, black symbolizing the mystery and/or interest in cryptids.