Rosie is called ‘baked potato’ on Big Brother, but the random nickname is reminding viewers of the former phrase given to an ex-housemate. For 72 days, Sophie Reade was called an unusual name. Current Big Brother UK housemate Rosie is a 29-year-old dental assistant who keeps being called ‘baked potato’. The baffling nickname wasn’t always given to her, but after a dares challenge, it kinda stuck. Big Brother’s Rosie called ‘baked potato’Big Brother contestant Rosie, who works at two dental practices doing admin, is being called a baked potato. By episode 3, she adopted the new name, which has …