The phrase refers to the action of acquiring an audio file, specifically a track associated with the professional wrestler known as The Undertaker, in the MP3 format. This file is intended for use as a customized sound alerting the user to an incoming call on a mobile device. This action involves seeking out, and saving on a device, a particular piece of music for personal use as a notification signal.
The appeal stems from a desire for personalization and self-expression through technology. Choosing a recognizable and often iconic sound, like the theme music of a popular figure, allows users to distinguish their device and signal their individual tastes or affiliations. Historically, customized ringtones represented a significant shift away from standardized device alerts, enabling a new level of digital individuality. Its benefits included an auditory customization and identity assertion.
