Robotogender is a xenogender in which someone feels a their gender is somehow connected to robots.
Origin
The term and flag were created by tumblr user p1nheadz on September 21st 2021.[1]
Flag
Tumblr user p1nheadz explained the meaning of the flag in the coining post. The colors have little meaning, but the green is meant to represent battery acid, the grey is meant to add contrast, and the blue is just a color the creator associated with robots.