Geez kid. masturbating is jerkin' it, whacking off, jacking off, yankin' it, wanking, spanking your monkey, stroking the salami, petting the one eyed snake. You know, pumping your penis like it's a supersoaker. Just rock out with your cock out, hang out with your wang out. you know, pounding the ol' pud. Pretty much that's what it is.