many of us have wondered just who is Jack shit. we find ourselves at a loss when someone says, you don't know Jack shit. well, thanks to my genealogy efforts. you can now respond in an intellectual way. Jack shit is the only son of all shit. all shit the fertilizer magnate married oh shit. the owner of Knee Deep in shit. they had one son Jack. in turn, Jack shit married no shit. the deeply religious couple produced 6 children. holy shit Give a shit full of shit bullshit, and the twins deep shit and dip shit. against her parents objections. deep shit married dumb shit. a high school dropout. after being married 15 years. Jack and no shit divorced. no shit later married Ted Sherlock. she wanted to keep her previous name. she was then known as no shit Sherlock. meanwhile, Dipshit married Lota Shit. and they produced a son with a rather nervous disposition named Chicken Shit. bullshit, the prodigal son left home to tour the world. he recently returned from Italy with his new Italian bride, pizza shit. now, when someone says you don't know Jack shit. you can correct.