Gramma Wizard Share definition Flag An ugly old (or young but old LOOKING) woman who resembles or has features or characteristics of a wizard. Girl- Thats her MOM? She looks so old! Friend- Yeah, shes a Gramma Wizard. Gramma Wizard by glambert4life June 24, 2010 0 0 Get merch Get the Gramma Wizard mug. Buy Now — $32.95 See more merch