i THINK WHAT i GET ON MY PENIS IS CALLED SMEGMA I'm 15 and I masturbate every 2-5 days and I clean my penis every day but it always seems to be dirtied with the white residue which is foul smelling I remember getting it a little but only if I didnt wash my penis for a long time but now I get it all the time and I don't know why is there a special soap i can use or what?
The only thing I can tell you is to clean it more than once a day, especially if you're a fairly active person or work in the heat like I do.