What does hobnoker mean?

Most people think that a hob nocker is a hobo tramp or geek or something of that nature; but honestly its supposedly disccusting and also illeagal; i asked cha cha and it said that a hob nocker is some one who masturbates in public; now that's innapropriate for a kid show and its supposed to be gross and that is quite gross and if you ask chacha you may get the same answer that i have gotten numorus amounts of time