Bungender, or genderbun, is a xenogender and kingender for when either your gender is influenced by your rabbit/bunny kintype, when your gender is small and soft (in volume) and warm, fuzzy and anxious (in feeling), when your gender feels somehow like a bunny, or when your gender started out small, but is now increasing at an alarming rate (either -flux or collector).
History
The term was coined by tumblr user @emojiselfpronouns on June 25th, 2018, providing all possible definitions of the gender and both flags.