In one episode of the classic sitcom I Love Lucy, Lucy's mother-in-law arrives from Cuba to visit Lucy and Ricky. In one scene, Lucy is alone with her mother-in-law. Unfortunately, Lucy can't speak Spanish and her mother-in-law can't speak English. Lucy tries to communicate by using gestures. At one point she is trying to tell her that they are having chicken and rice for dinner. She imitates a chicken to try to communicate the chicken part. Then she does some funny song and dance with hand motions to try to communicate "rice". What is she trying to imitate? It seems it works as her mother-in-law finally understands. Here is the scene in question:
I have watched I Love Lucy many times and this scene always confuses me. I always assumed that she is imitating some kind of commercial for rice that was popular at the time.