Bigendermeld is a static gender in the bigender system in which one has two genders, but rather than them being distinctly separate, they are mixed or intertwined.
The flag was created by the coiner in the coining post, on the same date. The bluish and reddish purples represent the different genders that one is a mix of. The grays represent the static gender. The purple represents being a mix of the genders.