A Short Gender Egoist Simplification
Any masculine-aligned adult individual who develops self-content within manhood, male identity/conventions which vary from cultural region to cultural region.
Any individual who activates certain — but not strictly all — social aesthetics and conduct in order to be in line with traits conventionally associated with men.
Any individual who dissolves the sacredness of taxonomy with his conscious existence as a man, regardless of essentialist wailing about perceived "Flaws," "Defects" or "Inauthenticity".
(Cisgender men, that is, men who affirm their having been assigned "Male" at birth and who pursue masculinity in agreement with this, experience much of the same hatred and dehumanization that transgender men face each and every day, especially when it comes to reproductive capability, physical appearance, etc. All men, transgender or cisgender, suffer patriarchy in similar but unique circumstances.)
A man is a person who delivers raw self-contents into the versatile bounds that form the living picture of a man.
He is his own while engaging the social sensors that call out "Man!"
He is free and he is entire.