It is similar to proxangi, the main difference being that it is not derived from androgyny in any way. It is the androgynous equivalent of contramas or contrafe.
Contrandrog is a combination of the Latin words contra, meaning against, and androgynous, meaning a combination of masculine and feminine.
The term was coined by Fandom user Honk4bees on June 5th, 2021.
The flag was created by the same user on the same date. The purple stripes represent how contrandrog relates to androgyny, and the yellow stripes represent a distinction from androgyny. The gradient represents how these two elements mix with each other.