Definition: Ralphie Boy was a character in The Secret Life of Walter Mitty, a comic strip published by Alfred A. Knopf & Company. He's often portrayed as a 6-year-old boy who loves to play outside with his friend Jonah. Ralphie is seen as a role model and often helps out when others need assistance or guidance. The word "ralphieboy" means someone who has no business or authority, often by association, but without real power or influence. It can be used metaphorically to describe someone who doesn't belong in a position of authority or responsibility.