Book Worm Share definition Flag 1. One who attends the University of Chicago in Chicago, Illinois. 2. An avid reader. BB: Bill Gates claims to be a book worm. Becky: So does the actor Christian Bale! BB: OMG, Becky. Book Worm by Food and Drug Administration June 26, 2003 0 0 Get merch Get the Book Worm mug. Buy Now — $32.95 See more merch