Mutogender

Mutogender is a subcategory of genderfluid, in which one's gender changes in response to a specific situation. It can include things like one's location, the time of day, the people one is around, etc. It can be a gender on its own or an umbrella term.

Similar terms include aerogender, evaisgender, and joygender.

History
Mutogender was coined on or before July 11, 2014 by Tumblr user 3785091890821 (formerly Creativeflipflop and Houisa).

Flag
The flag was coined on August 28, 2015 by pastelmemer from pride-flags-for-us. The colours were chosen to resemble the genderfluid design but with warm colours to show more liveliness and social-ness.