The iPhone charge sound comes from Apple's iPhone charging behavior and became widely recognizable through everyday use rather than a single meme source. Online, creators use it as a shorthand for plugging in, getting power back, or triggering a clean tech moment. Its popularity comes from how common iPhones are and how fast the chime communicates the idea with no explanation. In short edits, it often fills the same role as a ding sound effect or a Discord notification: a tiny audio cue that instantly signals an event.