Erm what the sigma grew out of Gen Alpha internet slang that spread widely on TikTok and in Roblox and gaming communities during 2024. Sigma had already become ironic shorthand for a lone, confident figure, so pairing it with a confused erm turned it into a mocking reaction to anything trying too hard or making no sense. Short voice versions like this one, alongside the rizz sound effect, were clipped, reposted and added to edits and soundboards, helping the phrase survive as a quick audio shorthand for bewildered disbelief.