Unclear 'eMudhra four' meme trends with no context

A single Mastodon post by David Revoy shows only the tags "eMudhra" and "four" with a key emoji. The items give no explanation of what it refers to.

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1. 22 Oct, 22:20 UTCFirst appeared on David Revoy

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• 🗝️ # eMudhra # fourDavid Revoy