This notification comes from TeamSpeak, a voice chat program widely used by online gaming communities, especially in the 2000s and early 2010s. The female system voice became familiar through everyday join, leave, and disconnect alerts during multiplayer sessions. Over time, the “Disconnected!” line spread beyond TeamSpeak users into meme edits and short gaming clips because it instantly communicates a sudden dropout or exit. It still gets reused because the sound is brief, recognizable, and easy to time with visual fails or awkward cutoffs.