Penis is a male organ. Learn biology. Male and female are biological realities.
You can call yourself a “woman” but you cannot call yourself “female” if you have normally functioning XY chromosomes.
Penis is not a female organ.
Male and female relate to gametes only. Male and female are defined on gametes if a species has two kinds, and one is smaller. The smaller one is male. Thus ends the biological definition of male and female.
Chromosomes and stuff are how evolution builds a body to hold male or female gametes in the context of human sexual dimorphism. Different species do chromosomes differently, or use something else like how warm the egg is. Gametes are fundamental, X/Y chromosomes are just mechanism. Different species don’t necessarily have only one kind of male-plan body or female-plan body.
Evolution doesn’t exactly build a body as “male” or “female” either. There’s a lot of slippage in the process that constructs male-plan and female-plan bodies, and that’s clearly “deliberate” (evolution could tighten up the error checking, but has chosen not to). Complicated genders and complicated bodies seem to be an evolutionary advantage, in small numbers, such that there are enough cis straight people left over to breed.
Now you have learned some biology. Time to learn some sociology.
Privileging the biology as an explanatory excuse is something our society does to create castes called “sexes”, that relate only in the crudest way to biological reality. Defining two-and-only-two sexes is something our society does because they are castes, not because they relate in any reliable way to having large or small gametes, or the ability to carry or fertilize a pregnancy.
Penis is defined as a “male” organ because facing the biological reality that not everyone constructed with a penis has a male-plan brain would break the caste system.
When you define it as a “male” organ, you re reinforcing these patriarchal castes.
Now you have learned some sociology.