The bump was dance style in 1970s. It was introduced in 1974. Bump , Hustle and Watergate are popular dance style in 70s. The lyrics were "We love the bump; everybody bump; gotta do the bump." The dance had a goal to lightly "bump" hips on every other beat of the music. There was no need to have a partner. The dance could become more athletic bumping Hip to hip in full knee bend up to a standing position. Intimate, bumping hip to backside, low bending, etc. The Bump" was played by The Commodores on Machine Gun album. KC & the Sunshine Band, Kenny(UK band) and many others picked up on the rhythm and "The Bump" became a worldwide dance craze in the summer of 1975.