A blankboy, also known as blankman, blankmale, and blankguy, is a boy who cannot explain their manhood any further than being a blank space.
The fluid counterpart is blankboyfluid and the feminine counterpart is blankgirl.
History
Blankboy was coined by Tumblr user nonbiarrow (Reddit user elhazelenby), April 20th, 2021. The blankboy flag was created by the same user on the same date.[1]
Flag
The flag is the same as the genderblank flag but with an extra blue field on the top half of the flag, representing manhood.[2]