The term "고추" refers to the male reproductive organ, commonly known as the penis. It plays a crucial role in sexual reproduction and is involved in the excretion of urine. The structure consists of erectile tissue that can fill with blood, allowing for an erection during sexual arousal. In addition to its biological functions, the penis is also a symbol in various cultures, often representing masculinity and fertility. Understanding its anatomy and functions is important for sexual health and education, as it helps individuals make informed decisions regarding their bodies and relationships.