have my jacks Share definition Flag can also be pronounced 'ave me jacks. Used in poker when you beat some ones hand with jacks. man1: Two pairs; eights and kings man2: (lays down three jacks) Have my jacks have my jacks by Vincentw00t September 29, 2005 0 0 Get merch Get the have my jacks mug. Buy Now — $32.95 See more merch