This was the third of five US #1 hits for KC & The Sunshine Band. All their hits were written by their bass player/producer Rick Finch and their lead singer/keyboard player Harry Wayne Casey (KC). Finch told Songfacts
this song was directly inspired by dance moves they witnessed in clubs. He explained: "The Bump was big back then, and then every once in a while you'd see someone break loose and shake their booty like Jell-O. We figured, okay, how do you write about this? You know, say it like it is. We also were collecting phrases, trying to find a buzz word and write about it, or a catch phrase, and try and expound on that. Just trying to keep it fun."
Finch goes on to explain this method of tailoring songs to disco culture: "As we started performing, we'd pay attention to what the people were doing, either body moves or body language, and try to transfer that back into the next production. As soon as we got back off the road we'd go right into the studio with that freshly captured energy, start recording, and not try to think too much."