Sylpheritis Share definition Flag It’s the disease of your head exploding if you don’t talk for a certain amount of time “Wow, and here I thought you would suffer Sylpheritis if you stopped cursing for more than 20 minutes,” John marvelled. Sylpheritis by insert name here6743 October 21, 2019 0 0 Get merch Get the Sylpheritis mug. Buy Now — $32.95 See more merch