Taboos are social or religious prohibitions against certain actions or behaviors that are considered sacred or forbidden. The document provides examples of taboos from around the world related to activities, foods, depictions, and behaviors. Specific taboos discussed include cannibalism, self-flagellation, fire walking, dancing with corpses, impaling, and various dining etiquette rules in different cultures like not cutting noodles in China or asking for extra cheese in Italy. Religious taboos in Islam are also outlined, prohibiting pork, alcohol, depictions of Muhammad, adultery, and suicide. Taboos are culturally dependent and aim to enforce moral or spiritual guidelines within a society.