joseph walker means in slang: The joseph Robert Phillip walker is a large person. He measures 5’10 and weighs in at a healthy 10 stone. The ‘nerd’, as it’s sometimes called, can often be very spontaneous. A nerd is more likely to react angrily when someone calls him fat or gay, or if he’s insulted by wild Josh. A nerd is also obsessed with glasses-wearing tall ginger men. According to legend, Joseph Robert Philip Walker had once been in a relationship with one of these men. (in Slang Dictionary, added by Kenna Hughes)