fack dood Share definition Flag A phrase used in a situation which causes confusion or frustration, as opposed to fuck dude which is more commonly used in a situation which causes fear, shock, or panic Fack dood, no one has any weed. fack dood by Griffski July 23, 2006 0 0 Get merch Get the fack dood mug. Buy Now — $32.95 See more merch