Pin ‧ no ‧ chi ‧ o /pɪˈnəʊkiəʊ/ BrE AmE
a character in an Italian children's story that was later made into a ↑ cartoon film. Pinocchio is a wooden ↑ puppet who comes alive as a real boy, and whose nose grows longer when he tells lies. People sometimes mention the idea of someone's nose growing longer to mean that someone is lying.