4 ms·It's probably a play on the "you don't know jack" trivia game.by aphexairlines 12y agoIt's probably a play on the "you don't know jack" trivia game.tim_iles 12y agoMore likely the common phrase, "you don't know jack shit"._getify 12y agothe game was a play on that phrase, and my book title is a play on both. :)