No it has no effect on the penis at all.
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.
The gel-like substance you are experiencing after masturbation is likely pre-ejaculate, which can sometimes be mistaken for semen. It is normal for this fluid to be present during sexual arousal. Feeling weak after ejaculation can be a normal response to the release of hormones and the exertion of energy during the act. If you continue to feel weak or have concerns, consider speaking with a healthcare provider.
mastrubation
a dick/penis
Just Stop.
No it does not.
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.
Stress relief
Yes it is the source of your power and if it leaves you three times you will die painfully. After it exits you you must consume it to regain your power.