No it has no effect on the penis at all.
nope
if it's clear, it's natural or u have an ejaculation problem
When your girlfriend tells you "You have a weak penis" or "Your penis is weak"
Since masturbation does not cause weakness, you may have some other medical problem causing you feel weak. You should see a doctor for proper medical evaluation.
mastrubation
a dick/penis
Just Stop.
No it does not.
nose, penis, toes, armpit
Stress relief
I assume you mean interfere or cause some sort of problem with growth. It will not hurt a thing. Male or female, there is nothing wrong with masturbating and pretty much everyone does it.
It means penis
No, there is no direct correlation between a person's physical strength and the size of their penis. Penis size is determined by various factors, including genetics and hormonal influences, and is not related to a person's physical strength or weakness.