Genderqueer is a term often used interchangeably with non-binary, meaning a gender that is not does not fall under being strictly under male or female.
Genderqueer can be a gender identity on it's own or can be used as an umbrella term, to describe any non-binary or genderqueer identity.
Flag
The genderqueer flag was designed by Marilyn Roxie is licensed under a Creative Commons Attribution 4.0 International License. The first design for the flag was posted in June 2010[1], the flag was later changed in September 2010[2].
The flag was changed again in June 2011 giving the final flag[3]. The colors represent the following: lavender, the mixing of blue and pink, traditional male and female colors, it is meant to represent genderqueer people who are both male and female. It also represents “queerness” as lavender has historically been associated with homosexuality and bisexuality. White, representing agender people. Dark chartreuse green, the inverse of lavender, it's meant to represent those who are outside the binary.