What does title of Cream song NSU mean?

The title "NSU" in the Cream song refers to the NSU Quickly, a type of scooter that was popular in the 1960s. The song's lyrics reflect the carefree and rebellious spirit of youth, with the scooter symbolizing freedom and adventure. It captures the essence of the era, blending themes of love and the excitement of cruising around on a scooter.