Ice cream trucks have long used a short, looping tune to announce their arrival, a sound that became part of street life in many countries during the twentieth century. Because the melody is so widely recognised, short recordings of it are now shared online as a ready-made sound effect for videos, memes and edits. Creators reach for it whenever they want an instant summer cue, a childhood flashback or a slightly unsettling contrast, and its brevity makes it easy to drop into a transition, a reaction or the start of a joke without explaining the scene.