A slangy hairdo is a hairstyle that is popular among young people and often considered to be fashionable. The term 'fro' is commonly used to describe this type of hairstyle, which is characterized by tight curls or waves. It is usually worn with the hair cut short on the sides and back, while the top is left longer and allowed to form into tight curls or waves. This style has been popular among African Americans since the 1960s and has become increasingly popular among other ethnicities in recent years.