lystomer Share definition Flag a person who is obsessed with being grammatically correct and is a total grammar nazi; also known as nerd, freak, geek, loser, half bomb Austin are such a lystomer, he always corrects me grammar! lystomer by Sisquat January 15, 2009 0 0 Get merch Get the lystomer mug. Buy Now — $32.95 See more merch
