Clips like this come from the culture of mock moderation in Discord servers and group chats, where typing slash commands is treated as the ultimate punishment. The specific name makes it funnier than a generic ban sound, so people reuse it even when no Sarah is involved, or single out whichever friend fills that role in their group. It has spread as a short soundboard clip because it is instantly understood, easy to drop without context, and works both as an inside joke and a reaction to mild chaos online.