crumb-guzzler Share definition Flag a person who tips the empty bag of potato chips vertical so the remaining crumbs drain into their mouth, or "to crumb-guzzle". John: "Look at that guy over there! He's drinking his chips!" Jane: "He's being a crumb-guzzler." crumb-guzzler by blast196 May 18, 2010 Get the crumb-guzzler mug.