Brannock Device (BRAN•ock dee•vise) Noun: The odd looking device found anywhere shoes are sold, used to measure the size of ones foot. Used in a sentence: "Hey, did you hear about Bob? He was arrested yesterday for illicit use of a Brannock device! (Apparently he's a child's size 5.) Now he's going to be a registered sex offender for being a Brannock buggerer."