Juicebaby Share definition Flag (adj.) An adjective that describes a person that drinks outrageous amounts of juice. "Dude, Jenny is such a juicebaby, all she drinks is Arizona Fruit Punch." Juicebaby by Tony [No Middle Name] Clayton August 27, 2009 0 0 Get merch Get the Juicebaby mug. Buy Now — $32.95 See more merch