The term 'Little Caesar Gangster' refers to the character Rico, a gangster from the 1931 film Little Caesar. He is portrayed by Edward G. Robinson and is a small-time hoodlum who rises to power in the criminal underworld of Chicago. Rico is a ruthless and ambitious criminal who will do anything to get ahead, including murder. He is eventually betrayed by his friend Joe and killed in a shootout with the police. Rico's story has become iconic in American culture and he is often seen as a symbol of the American dream gone wrong.