The song is about someone celebrating Saturday night after getting paid. He chooses a date, goes out dancing, and plans to enjoy himself rather than save his money. The mood stays energetic and carefree: the repeated promise to have fun makes the night feel like a welcome break from ordinary responsibilities.
Several phrases are playful, exaggerated ways to describe partying. “Rip it up” means to have an exciting, energetic time, not to tear something. “When the joint starts jumpin’” suggests that the dance hall will become lively, with music and people moving. “Flying high” likely means feeling very happy or excited; it does not necessarily describe literal flight.
The lyrics present pleasure in the moment as more important than careful spending, especially when the singer says he does not care if he spends his money. This can sound joyful and spontaneous, but also a little reckless. The phrase “a fool about my money” hints that he knows he is not being sensible, yet he accepts that choice for one night. The song does not show what happens afterward, so its celebration can be heard simply as youthful fun, or as a brief escape from everyday concerns.