In 1906, "23 skidoo" became a popular phrase across the United States, capturing the energetic essence of the early 20th century. Originating in New York City, particularly near the Flatiron Building, the expression was a playful way to tell someone to "hurry along" or "scram." It quickly spread through popular culture, featuring in theaters, song lyrics, and newspapers. The phrase epitomized the vibrant social atmosphere of the era, remaining a distinguished symbol of that dynamic time.