Crystagender is when one's gender randomly changes, and they often feel broken or fractured between multiple different genders.
For example, on one day, one might feel like they're 110% agender, but on the next they're "broken" into demigirl & nan0boy, androgynous, etc. Whether they feel like they switch between these genders throughout the time period, or feel like all at once, is up to the person.