Blankboy

A blankboy, also known as blankman, blankmale, and blankguy, is a man who cannot explain their manhood any further than being a blank space.

The fluid equivalent is blankboyfluid and the feminine equivalent is blankgirl.

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

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.