My dad said schmeg (shhhmeg hard sh sound) for the longest time I could remember, no one ever heard of it and my relatives even started using it. So wierd. Maybe someone could help me define it. ...

grosss, i HATE that word!! My friend uses it to describe orange juice pulp

I think people should know what this stuff really is. Bleck. http://dictionary.reference.com/search?q=smegma

why does this happen to people!?

because we're mostly water and it comes out in certain ways in certain places in certain forms based on heat, temperatures, humidity level, and friction?