Grandpa Prune (who used to be known simply as Plum) is a character who appeared in the Annoying Orange episode Grumpy Old Fruits. He used to be a war buddy of Grandpa Lemon in the navy. Grandpa Lemon was holding a reunion for him, however, when he arrived, Orange mistook him for a big raisin. Near the end of the episode, he claims he came to tell Grandpa Lemon that he was retiring, and knew his time would eventually come - saying he might become juice. This almost was true when Dane Boedigheimer placed a juicer on the counter, until Grandpa Prune left in a hot air balloon to retire to Florida, and Carrot got juiced instead.