Used to focus on and hold the urine in, when a person or persons must urinate very badly.
I must use my internal penis to contain my urine in before I get home.
Best used when going somewhere in your car, and there is no where to stop to urinate, your internal penis will never fail... trust me
by Bergesmurf March 29, 2006
It's the part of the pubic region via inside the body, which enable the person or persons to hold their urine in when the person or persons have to go to the bathroom really bad.
I must use my internal penis to contain my fluids from exploding out.
Especially useful when in the car going somewhere, and you have to go to the bathroom really bad.
by Bergesmurf March 29, 2006

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