JibJabJack Share definition Flag A person who does a 69 with their own grandma while eating sushi through his ass Hey uhh... did you hear that my neighbour is a JibJabJack? JibJabJack by Hans_Kalazar June 17, 2020 0 0 Get merch Get the JibJabJack mug. Buy Now — $32.95 See more merch