Please no. That's a load of crap and you know it. It's very easy to distinguish between something which has half the chromosomes needed to be considered human and something that has all of them (or close in the case of some mutations :D) Of course, on a technicality the statement is correct. Masturbation does kill sperm which amounts to cells. The intended meaning of that propaganda phrase is that it's killing a human life (closer to the legal definition of murder) which is just plain dumb. That sort of completely useless, overly dramatic, and completely fallacious statement shouldn't be welcome here. If only we had "downvotes" ... I know you were probably trying to be funny or just spewing something you've heard dozens of times before, but please, no.