Crocodile Rock by Elton John is a nostalgic song that reminisces about the joyful and carefree times of youth, particularly the rock-and-roll era of the 1950s and early 1960s. Key themes in the song include nostalgia, youth, and the passage of time. The song fondly recalls dancing to the lively 'Crocodile Rock,' sharing those moments with loved ones, and the unburdened innocence of that era. Poignant moments include the reflections on the music and dance that defined the time, and the poignant realization that those times have passed, symbolized by lyrics like 'I never knew me a better time and I guess I never will.' The song taps into a universal sense of longing for the past and the bittersweet nature of memories.