Demiguy

Definition and Usage
Demiguy (also known as: demimale, demiboy, demiman) is a gender identity that is partially, but not fully, male or masculine. A demiguy can be both "male" and "nonbinary", or just "loosely male". Although it is a label within itself, it can be used as an umbrella term describing partially-male, partially-not genders. It can be static or fluid.

Subgenders
There are many other genders similar but more specific than demiguy, including bxy & genderfaun. The feminine equivalent is demigirl, and it is part of the demigender group.

Flags
The blue in the flag represents the tie to masculine/male gender, while the grey tones reference the other gender feelings.