Pride flag of the Genderfuck gender identity/expression. Described in source as follows:
"The colors (yellow and purple) are to show the different kinds of identities and expressions that go under the term (Purple being a mixture of male and female, yellow being outside the binary entirely, and them working together to show those who experience multiple genders in such a way), and the skull for the rebellious nature of the gender identity."
Pride Flags For Us (archived)
yo-ho-sebastian/queerfenris on Tumblr

SVG file Darling