lysdexic Share definition Flag a play off of dyslexic. usually used when referring to someone being tongue tied. person1: "Let's go catch a movie." person2:"I'll buy popcron." person1:"dude, your soo lysdexic." lysdexic by www.duh May 3, 2010 0 0 Get merch Get the lysdexic mug. Buy Now — $32.95 See more merch