Demiqueer, sometimes demigenderqueer, is a label within the demigender umbrella that describes people who do not feel like a gendered term like -boy or -girl can be added to demi- to describe themselves. Demiqueer people are both demigender and genderqueer.
The first known use of the term is by Tumblr user feylavie-blog on November 19, 2014. The modern definition of demiqueer comes from a Tumblr anon whose message was posted on September 30, 2018. 
In 2015, a transphobic meme emerged stringing together multiple non-binary genders, xenogenders, and kingenders, often including demiqueer, to mock the MOGAI community on Tumblr. Exclusionists on Tumblr have used the term in a derogatory and transphobic way.
The first demiqueer flag was created by Tumblr user pride-color-schemes on July 28, 2016. The color scheme is a reference to the demigender pride flag.
The second demiqueer flag was created by Pride-Flags on DeviantArt on January 9, 2017.
On January 30, 2019, Tumblr user imoga-pride designed a simplified alternative to previous demiqueer flags.
On March 5, 2020, another simplified version of the demiqueer pride flag was created by Tumblr user the-gender-collector-emself.
- [https://web.archive.org/web/https://feylavie-blog.tumblr.com/post/103040978619/got-my-haircut-on-saturday-and-looking-supercute Tumblr post tagged demiqueer. ]
- [https://web.archive.org/web/https://realtransfacts.tumblr.com/post/178286432289/i-just-thought-of-a-cool-sounding-label-i-feel Tumblr post on the validity of using demiqueer as a label. ]
- [https://web.archive.org/web/https://www.dictionary.com/e/gender-sexuality/gendervoid/ Explanation of the meme (content warning for transphobia). ]
- [https://web.archive.org/web/https://www.urbandictionary.com/define.php?term=trigender%20demiqueer Urban Dictionary entry based on the meme. Content warning for transphobia. ]
- [https://web.archive.org/web/https://grungegoths.tumblr.com/post/178639162369/honestly-these-days-i-legit-cant-tell-the Tumblr post comparing the use of the meme by anti-MOGAI people from outside Tumblr and exclusionists on Tumblr. ]
- [https://web.archive.org/web/https://pride-color-schemes.tumblr.com/post/148110882532/demigenderqueer Tumblr post displaying the demiqueer flag. ]
- [https://web.archive.org/web/https://www.deviantart.com/pride-flags/art/Demigenderqueer-656353620 DeviantArt post featuring a demiqueer flag. ]
- [https://web.archive.org/web/https://imoga-pride.tumblr.com/post/182435814991/demigenderqueer-alt-flag Tumblr post by imoga-pride with the simplified demiqueer flag. ]
- [https://web.archive.org/web/https://lgbtqiarchive.tumblr.com/post/611802714326925312/demiqueer-flag Tumblr post by the-gender-collecter-emself with another simplified demiqueer flag. ]