Jac'n and Mac'n Share definition Flag The act of ejaculating into a bowl of Mac and Cheese then eating it. Bill: Dude! Did you just jizz in your Mac and Cheese?!!?Ted: Hellz yeah man I'm Jac'n and Mac'n Jac'n and Mac'n by Wheres Harvey June 7, 2009 0 0 Get merch Get the Jac'n and Mac'n mug. Buy Now — $32.95 See more merch