Slomongitis Share definition Flag A not-so-common disease among directors, driving them to use far too much slo-mo in movies. Zack Snyder, the director of 300 and Watchmen. Diagnosed of Slomongitis January of 2009. Poor bastard. Slomongitis by Dr. Mason May 15, 2009 0 0 Get merch Get the Slomongitis mug. Buy Now — $32.95 See more merch