"Bump-and-grinder" is a colloquial term for a person who performs suggestive and provocative movements while dancing. There are many synonyms that can be used to describe this type of dancing, including "grinding," "twerking," "freaking," "booty-shaking," "lap-dancing," and "striptease." These terms are often associated with the R&B, hip-hop, and club music scenes, where such dances are common. While they are often seen as controversial or inappropriate, many people enjoy these dance styles and use them as a way to express themselves and connect with others. Ultimately, it is up to individuals to decide whether or not they enjoy bump-and-grinder-style dancing and how they choose to express themselves on the dance floor.