Would anyone care to explain how masturbation is, in fact, moral but not a neutral issue?
Thing 1 and Thing 2 can help you with that.
Don't believe me? Just go ask The Cat.
Perhaps it's amoral for a cat who's all black
When no one is looking to lie down and jack.
At least that's how I interpreted it: I voted neither assuming that it means amoral (i.e., not concerned with morality.) However, as you get older you will find that there's a real morality associated with excessive masturbation. There's what I already mentioned, and even if you're not in a committed relationship, you're creating more laundry for your poor mother. She's already out all day slaving away at her job to keep you in ipods and Nikes and video games. At the very least, if you're going to pound it five times a day, you should offer to assist her with the laundry.
Also, if you are tossing your seed to the wind every night, you'll become less interested in women. Rosie will become your best friend, and you'll stop looking for pussy. You'll get to a point where you can't wait to get back home after an evening out with the guys. You'll leave early, excited to get back home and jump between the sheets. You'll turn down potential dates with attractive, single young women, in favor of practicing self-abuse. I guess it's like anything else: in the abstract, and in moderation, it's rather amoral. But if it becomes excessive and burdensome, or takes your attention away from your studies and your family, then it becomes immoral.
As for Harry and Sally, on that cold, cold wet day
What will they do while their mother's away?
They might play Twister, or Monopoly,
Or watch a porn movie, starring Ron Jeremy.