Blankboy

A man who cannot explain their manhood any further than being a blank space. Also can be called blankman, blankmale or blankguy.

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

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

Flag
The flag shows the symbol from the genderblank flag as well as a blue and grey field. The gray field is also from the genderblank flag and the blue field represents manhood.