From the Super Mario Wiki
Mugga is a woman from the The Super Mario Bros. Super Show!. Mugga is a medicinal caveman who lives with the Cave Mushrooms in Caveman Land. She does not know how to speak Mario's language, so she uses hieroglyphics and her Cave Mushrooms to communicate with him and his friends. Her only appearance was in the episode Quest for Pizza. In the episode, Mario, Luigi, Princess Toadstool, and Toad were searching for Mugga. Mario's friends discovered her shelter behind a waterfall. Since Mario was in an unconscious state due to a snake bite, Mugga decided to help them. After trying a number of failed treatments, Mugga whispered "pizza". Mario's friends interpreted that she wanted them to feed Mario pizza. They completed the pizza, but needed to cook it. Mugga used a hieroglyphic Fire Flower to tell them that they needed a Fire Flower to cook the pizza.