Writer's Bump Share definition Flag A callous formed on the finger your pencil rests on as a result of writing by hand too much. "What's that on your finger?" "It's a Writer's Bump, cause I write a lot." Writer's Bump by Nibblet101 February 13, 2010 0 0 Get merch Get the Writer's Bump mug. Buy Now — $32.95 See more merch
