Bigenderblend is a fluid gender in the bigender system which one has two genders, but rather than them being distinctly separate, they are mixed or intertwined and the ratios are fluid but one gender will always outweigh the other no matter the ratios. This gender can change to different ratios abruptly or fluctuate between the two.
An example of a bigenderblend individual would be someone who is fluid between man and non-binary. The individual will always be somewhere in between man and non-binary, but the ratios would change. However, no matter the ratios, they will always be more man than non-binary.
The flag was created by the coiner in the coining post, on the same date. The blue represents one of the genders that one is fluid between and the fact it always outweighs the other. The small stripes for this color represent the fact one is never solely this gender. The colors in between represent a mix of the two.