Bidemigender or demibigender is a combination of bigender and demigender. In other words, it is when one identifies as two demigenders. Bidemigender people can be a combination of any two demigenders. For example, a bidemigender person could be a demiboy and a demigirl.
People who experience more than two demigenders can be tridemigender.
History
Bidemigender was coined on the LGBTA fandom wiki by user Trashwoof on December 20th, 2020.