Mustelidgender is a xenogender in which the person feels a connection to mustelids, i.e. otters and ferrets. Could also be a kingender.
History and flag
Mustelidgender was created by u/whirlybird_ on r/XenogendersAndMore on April 7, 2021, The mustelidgender flag was created by u/whirlybird_ on the same date. The white stripe stands for a feeling of connection or relation, the yellow is for the cuteness of ferrets and otters, the green is for nature, and the blue is for otters' and ferrets' intellect.