Upgender is a gender that feels large and expansive, but stretches too thin and is therefore weak. It may be considered the opposite of hypogender, and can be combined with any other gender to specify further (upboy, upgirl, etc.).
History
The coiner of upgender and its flag are both unknown; the flag was published on DeviantArt on September 15, 2015, with the term's definition, by Pride-Flags.[1]