Tetrisgender is a term with two possible definitions. The first definition is a subset of gamegender where one feels that their gender is "gradually stacking up" before being removed, similar to how lines are cleared in Tetris.
The second definition is where a person feels as if their gender is connected to the game of Tetris itself, or incorporates Tetris into their gender to better understand/explain it. Like the first definition, it is also a subset of gamegender. It could involve a connection to a certain piece from Tetris, but it does not have to.
History
The first definition of Tetrisgender was coined by Tumblr user infernal--enby on the 31st of May, 2019.[1]
The second definition of Tetrisgender was coined separately by Miraheze user DespOIcito on the 8th of November, 2021.[2]
Flags
The first flag was created by Tumblr user atergender on or before the 2nd of June, 2019.[3]
The second flag was created on the 8th of November, 2021 by Miraheze user DespOIcito. It depicts a PCO (Perfect Clear Opener)[4] and was created at the same time the secondary definition was coined. The colours used match the typical colours of the Tetris pieces.