"Make These 20's Roar" is a jazz song that captures the spirit of the Roaring Twenties. The lyrics paint a picture of a vibrant and exciting time, with themes of love, joy, and escape from the mundane. The song's structure is repetitive, with the refrain "Let's make these twenties roar" emphasizing the desire to live life to the fullest, symbolized by dancing, drinking champagne, and enjoying jazz music. The song's purpose is to evoke a sense of nostalgia for the era and to celebrate its energetic and carefree atmosphere.