Blankgirl

A blankgirl, also known as blankwoman and blankfemale, is a girl who cannot explain their womanhood any further than being a blank space.

The fluid equivalent is blankgirlfluid and the masculine equivalent is blankboy.

History
The term was coined by tumblr user nonbiarrow (aka reddit user elhazelenby) on April 20 2021, as well as its flag.

Flag
The flag shows the genderblank flag but with a pink field on the top half of the flag, representing womanhood.